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Last Complete Site Update: 6/23 - 6:38 AM
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"Summer afternoon - summer afternoon;
to me those have always been the two most
beautiful words in the English language."
- Henry James
Today’s Weather at a Glance
Updated Every Morning and as Needed Through the Day
(Averages Across Southern NH)
73Degrees
High Temperature
60%
Probability of Precipitation - Daytime
57Degrees
Low Temperature
0%
Probability of Precipitation - Nighttime
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Today in Peterborough, NH at a Glance
Today in Nashua, NH at a Glance
Your Daily Forecast - Three Days at a Time
None
Monday/Monday Night - June 29
Nashua - East
Peterborough - Central/West
Tuesday/Tuesday Night - June 23
Nashua - East
Showers likely and possibly a thunderstorm. Cloudy, with a high near 74. North wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Patchy fog after 9pm. Otherwise, cloudy, then gradual clearing toward daybreak, with a low around 58. Calm wind becoming northwest around 5 mph.
Peterborough - Central/West
Scattered showers before 2pm, then isolated showers after 4pm. Cloudy, with a high near 72. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Patchy fog. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 56. Calm wind.
Wednesday/Wednesday Night - June 24
Nashua - East
Sunny, with a high near 81. Northwest wind 5 to 10 mph.
Mostly clear, with a low around 58. Calm wind.
Peterborough - Central/West
Sunny, with a high near 77. Northwest wind 5 to 10 mph.
Mostly clear, with a low around 55. Calm wind.
Thursday/Thursday Night - June 25
Nashua - East
Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Peterborough - Central/West
Mostly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 57. Chance of precipitation is 80%.
Friday/Friday Night - June 26
Nashua - East
Peterborough - Central/West
Saturday/Saturday Night - June 27
Nashua - East
Peterborough - Central/West
Sunday/Sunday Night - June 28
Nashua - East
Peterborough - Central/West
Current Weather Readings in Peterborough, NH
Time of the readings below: 23 Jun 2026 1:25 PM
(FYI: The number in parentheses is the change in the last hour)
(Note: My weather Instruments are Offline from Midnight Wednesday to 7AM Thursday for system Back ups.)
Current Temperature:
66.1°F (2.1)
High Temperature:
66.1 at 1:17 PM
Low Temperature:
58.2 at 6:00 AM
Precipitation Today:
0.82 inches
Current Dewpoint:
62.8°F (0.2)
Highest Heat Index Reading:
66.1 at 1:17 PM
Current Windspeed:
0 MPH (0)
Barometric Trend:
Steady
Hours of Daylight Today:
15:20
Link to my Active Weather Instruments
Information for New England
Seven Day Temperature Outlook - Manchester NH & Southern New England
Current Northeast Radar
Expected Temperature Range
Health - The Five Day Allergy Outlook for Southern NH
Rich's Weather Discussion
New Hampshire/North Briefing
Massachusetts/South Briefing
At this moment: 6/23 - 6:38 AM
Notes from Rich:
What is the 'Regular’ Schedule.
Weekdays: Morning updates each day before 8AM, Evening Updates before 7PM.
On Weekends: Perhaps a bit later. I like to sleep in.
Every Thursday morning I post the daily forecast through the weekend.
Upcoming Site Update Schedule Changes:
None
I have over two inches of rainfall in my gauge this morning. Showers continue to cross the region with the heaviest rainfall now confined to coastal Maine. These showers will slowly diminish throughoput the day, ending by later this afternoon. A cool, damp day ahead with highs in the low 70s. A bright and sunny Wednesday is on tap, and even Thursday looks dry, but rain returns Thursday night and Friday.
A soaking rain continues across parts of Maine and New Hampshire this morning before gradually tapering off. The heaviest rainfall has focused on southern New Hampshire and coastal Maine, where widespread amounts of 1 to 1.5 inches have fallen, with localized totals over 2 inches. While widespread flooding is not expected, some localized street flooding and poor drainage issues remain possible. Scattered showers may redevelop over the mountains Wednesday afternoon. Attention then turns to Friday, when a cold front could bring thunderstorms, depending on timing. Warmer weather is expected this weekend into early next week, with some locations potentially reaching the upper 80s to lower 90s.
Check out the enhanced "Todays Weather at a Glance" section above.
From the Weather Channel:
It's late June, and I just found myself wondering if I'm actually, a mosquito. Let me explain. Like many of you, I've always had a vague understanding that the little bloodsuckers love warm, muggy weather. But after an otherwise lovely family dinner out on the deck was blighted by the frequent appearances of a swarm that was also ready to feast, I decided it was time to dig into the data to try to understand when we can avoid being dinner while eating dinner. What I found was not encouraging, because it turns out that mosquitoes have basically the same temperature preferences I do. Hence, my brief wondering if I might, in fact, be a mosquito. Basically, between 50 and 94 degrees Fahrenheit, it's game on for mosquitoes, while if the mercury hits 95, they won't bother flying. And I have to say: Same here. 95 degrees and higher, and I'm canceling any and all outdoor plans.
Here's the good news: There actually are two other weather triggers that have the advantage of being generally tolerable to humans yet repellent to mosquitoes: wind speed and dew point. Because mosquitoes weigh almost nothing, a steady breeze is the aerodynamic equivalent of a hurricane to them, so if your forecast shows sustained winds of just 10 mph or higher, they won't even attempt to fly. The other thing to watch for is the dew point. If you see a day where it drops below 60 degrees, it means the air is crisp and dry, which poses an existential threat to mosquitoes, which dehydrate very, very quickly. You can find your dew point in our hourly forecast. Good luck, and here's to all of us finding a few extra itch-free outdoor hours this summer, all thanks to knowing a little bit more about mosquitoes.
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What information can you find on my site, and where is it?
The History Section has a lot of history to share, and I will be sharing video on this page from time to time. Updated every day with new weather history.
Find beach and hiking, and Ski information as well as travel info for the USA in the Travel and Leisure Section.
Find all Tropical Tracking/Hurricane information on the Tropics Page.
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On this day in history:
On this day in 1868, inventors Christopher Latham Sholes, Samuel Soul?©, and Carlos Glidden won the patent for the first practical typewriter, the machine that gave us the QWERTY keyboard still under our fingers today.
Latest site updates and additions:
Find the June Almanac Here
Hurricane Season began on June 1st - Details and forecasts can be found here.
06/01 - Find the Mosquito Outlook in the Heath Section.
05/02 - Find the Summer 2026 Outlook for the USA here.
05/01 - The Hampton Beach Report returns! Updated daily.
In the Health Section above, starting April 7, you will find the Allergy Forecasts for Southern NH.
You can find my weather Reading via Weather Underground here: Peterborough, NH Readings
Catch Weather News Headlines and links here.
I have updated Rain/Snowfall totals here.
Drought information updates every Other Thursday evening. Last update: 06/11 - Next Update: 06/26 (or thereabouts)
Weather Summaries and Full Area Forecast Discussions - North (Edited)
Summary - Northern New England - New Hampshire and Maine
Summary:
A soaking rain continues across parts of Maine and New Hampshire this morning before gradually tapering off. The heaviest rainfall has focused on southern New Hampshire and coastal Maine, where widespread amounts of 1 to 1.5 inches have fallen, with localized totals over 2 inches. While widespread flooding is not expected, some localized street flooding and poor drainage issues remain possible. Scattered showers may redevelop over the mountains Wednesday afternoon. Attention then turns to Friday, when a cold front could bring thunderstorms, depending on timing. Warmer weather is expected this weekend into early next week, with some locations potentially reaching the upper 80s to lower 90s.
Key Messages:
- Low pressure continues to bring soaking rainfall through this morning. While widespread flooding is not expected, embedded heavy rain could lead to some urban and poor drainage issues along the coast and southern New Hampshire.
- Next chance of thunderstorms arrives Friday with a cold frontal passage. This will be followed by fair and warmer weather.
What has changed since the last Forecast Update?
No major changes were needed with this update. Rainfall chances were refreshed, current observations were incorporated into the short-term forecast, and the aviation forecast was updated for the latest forecast cycle.
No significant flooding issues developed overnight. The heaviest rain stayed near the coast before moving offshore. Rainfall observations show a widespread area of 1 to 2 inches across southeastern New Hampshire through Portland, with locally higher amounts in coastal York County where the heaviest rainfall rates occurred. Rain gradually tapers off this morning, although showers and drizzle may linger longest near the coast.
What this means for you:
Rain will continue through parts of this morning before improving from west to east. If you live in southern New Hampshire or along the Maine coast, watch for ponding of water on roads and in low-lying areas. Wednesday brings another chance for scattered afternoon showers, mainly in the mountains. Thursday looks warmer and mainly dry. Friday could feature thunderstorms, and a few could become strong if conditions come together at the right time. After that, warmer summer weather is expected to build back into the region.
Click the Open/Close Button to Display the Full Edited Area Forecast Discussion
Area Forecast Discussion
National Weather Service Gray ME
613 AM EDT Tuesday, June 23, 2026
**What Has Changed**
No major changes were needed with this update. Rainfall chances were refreshed, current observations were incorporated into the short-term forecast, and the aviation forecast was updated for the latest forecast cycle.
No significant flooding issues developed overnight. The heaviest rain stayed near the coast before moving offshore. Rainfall observations show a widespread area of 1 to 2 inches across southeastern New Hampshire through Portland, with locally higher amounts in coastal York County where the heaviest rainfall rates occurred. Rain gradually tapers off this morning, although showers and drizzle may linger longest near the coast.
**Key Messages**
1. Low pressure continues to bring soaking rainfall through this morning. While widespread flooding is not expected, embedded heavy rain could lead to some urban and poor drainage issues along the coast and southern New Hampshire.
2. Next chance of thunderstorms arrives Friday with a cold frontal passage. This will be followed by fair and warmer weather.
**Discussion**
**Key Message 1**
An upper-level trough, an elongated area of lower pressure in the atmosphere, will remain over the region through Wednesday as a stubborn upper-level low pressure system slowly drifts from western Quebec into New Brunswick and Nova Scotia. Widespread showers will continue through this morning across western Maine and New Hampshire as several disturbances move through the weather pattern.
Forecast thinking remains largely unchanged. The heaviest precipitation is still expected across southern New Hampshire and coastal Maine. Most locations should see rain move out by late morning, although steadier rain may continue around the Midcoast through the afternoon. A secondary area of low pressure may attempt to move north along the coast, but forecast guidance continues to keep most of its associated precipitation offshore.
Because of the persistent counterclockwise circulation around the upper-level low, a few afternoon showers remain possible over the mountains. Southern New Hampshire and coastal Maine are expected to receive the highest rainfall totals. Forecast guidance suggests widespread amounts of 1 to 1.5 inches, with localized totals exceeding 2 inches beneath heavier showers.
These rainfall amounts are generally expected to remain below levels that would trigger widespread flash flooding. However, recent rainfall has left the ground wetter than normal, so localized street flooding and poor drainage issues remain possible. Some isolated thunderstorms cannot be ruled out where heavier rain develops and limited atmospheric instability is present.
The same unsettled pattern continues Wednesday. Another round of afternoon showers is possible, especially in and around the mountains. A few rumbles of thunder are also possible as modest instability develops. Instability refers to the atmosphere becoming more favorable for rising air and shower development. Activity should fade during the evening as daytime heating is lost.
High temperatures today will range from the upper 60s to lower 70s across northern areas and the mountains, while southern areas reach the middle to upper 70s. Wednesday will feature similar temperatures, although mountain areas may be slightly cooler. Highs will generally range from the middle to upper 60s north to the middle to upper 70s south, with a few lower 80s possible across southeastern New Hampshire and coastal Maine.
**Key Message 2**
Thursday will be seasonably warm as southerly winds ahead of an approaching cold front bring more widespread temperatures in the 80s. Weather impacts appear limited, although some marine fog may develop Thursday night. Confidence in that scenario remains low.
The primary weather concern later this week is the next opportunity for rainfall and thunderstorms as a cold front moves through the region on Friday. The timing of that front will be critical. If it arrives during the warmest part of the day, thunderstorms become more likely. Should thunderstorms develop, strong wind shear, a change in wind speed and direction with height, could help organize storms and increase the potential for severe weather.
Colorado State University machine learning guidance currently shows a low probability for severe weather, but the situation bears watching. If the front moves through overnight instead, the result may be mainly areas of rain with limited thunderstorm activity.
Once the front moves offshore, high pressure is expected to build southward. Southwesterly winds higher in the atmosphere will gradually bring warmer air back into the Northeast. By early next week, some locations could once again see temperatures climb into the upper 80s to lower 90s.
Weather Summaries and Full Area Forecast Discussions - South (Edited)
Summary - Southern New England - Massachusetts/Northern CT/Rhode Island
Summary:
Periods of rain will continue across southern New England today, with heavier downpours and a few thunderstorms possible, especially across southeastern Massachusetts, Cape Cod, and the Islands. Rainfall totals of 1 to 2 inches remain the most likely outcome, with localized flooding possible in urban and poor drainage areas. Conditions improve tonight as drier air arrives, leading to a mainly dry stretch through Thursday. By late week and into the weekend, humidity increases and the weather becomes more unsettled, with periodic chances for showers and thunderstorms, although widespread severe weather is not expected.
Key Messages:
- Showers expected to continue today with some embedded thunder and heavier downpours possible.
- Drier through midweek. Turning mostly cloudy, humid and unsettled by late this week into the weekend. Though it will not be raining all the time, chances for showers and storms will exist on most days Friday and Saturday, but severe weather potential looks very limited.
What has changed since the last Forecast Update?
No changes to the forecast at this time.
What this means for you
Expect a damp day with occasional heavier rain and a few rumbles of thunder, mainly near the south coast, Cape Cod, and the Islands. Most locations should avoid significant flooding, but areas with poor drainage could see brief water issues during heavier downpours. Cooler temperatures will hold in the 70s today. Dry and more comfortable weather returns Wednesday and Thursday before a more humid and unsettled pattern develops later this week. While rain chances increase Friday and Saturday, it will not be raining continuously.
Click the Open/Close Button to Display the Full Edited Area Forecast Discussion
**Area Forecast Discussion**
National Weather Service Boston/Norton MA
316 AM EDT Tuesday, June 23, 2026
**What Has Changed**
No changes to the forecast at this time.
**Key Messages**
* Showers expected to continue today with some embedded thunder and heavier downpours possible.
* Drier through midweek. Turning mostly cloudy, humid and unsettled by late this week into the weekend. Though it will not be raining all the time, chances for showers and storms will exist on most days Friday and Saturday, but severe weather potential looks very limited.
**Discussion**
**Key Message 1, Showers expected to continue today with some embedded thunder and heavier downpours possible.**
Showers will continue to affect southern New England today as another weather disturbance moves across the region. Meteorologists are tracking a corridor of increased moisture transport around 2,500 feet above the ground, which may help showers intensify over Rhode Island and southeastern Massachusetts. As these showers encounter pockets of atmospheric instability, rainfall rates could increase.
Current forecast guidance favors a more southern track for the next disturbance, keeping the heaviest and most widespread rain mainly south of southern New England. The exception will be along the south coast, Cape Cod, and the Islands, where heavier showers remain possible.
Atmospheric moisture levels, measured by precipitable water values, are expected to reach around 2.0 to 2.1 inches this afternoon. Forecast models also indicate elevated instability across much of southeastern Massachusetts, Cape Cod, and the Islands, supporting periods of heavier downpours and isolated thunderstorms embedded within the rain.
Another forecast model shows a brief increase in elevated instability over Cape Cod early this morning, which could support a few thunderstorms. Given that overnight showers in Connecticut and Rhode Island have already produced occasional lightning and heavy rain, that possibility remains realistic.
Precipitation totals of 1 to 2 inches remain the primary expectation with this system. While widespread flash flooding is not anticipated because of ongoing drought conditions, localized flooding could develop in urban locations and poor drainage areas where heavier rain falls repeatedly.
Persistent cloud cover will keep temperatures from rising much above the 70s today.
Rain should gradually move offshore tonight as the disturbance exits the region, although a few showers may linger across Cape Cod and the Islands during the evening. Winds will shift to the northwest, bringing in drier air behind a passing cold front. This drier air will help clear remaining cloud cover heading into Wednesday. Overnight lows are expected to fall into the upper 50s and lower 60s.
**Key Message 2, Drier through midweek. Turning mostly cloudy, humid and unsettled by late this week into the weekend. Though it will not be raining all the time, chances for showers and storms will exist on most days Friday through Saturday, but severe weather potential looks very limited.**
After the cold front moves offshore tonight, a drier weather pattern settles into southern New England through Wednesday and much of Thursday.
The weather pattern becomes more unsettled late this week and into at least the early part of the weekend. A broad area of west-to-east upper-level winds, known as a quasi-zonal flow pattern, will stretch from the Great Lakes into the Northeast. Embedded weather disturbances moving through this flow will interact with a nearly stationary frontal boundary extending from the Ohio and Mississippi Valleys eastward toward the Mid-Atlantic and southern New England.
Forecasting precipitation and thunderstorm timing within this type of pattern is often difficult because small changes in the position and strength of individual disturbances can significantly affect when and where rain develops. Forecast models currently disagree on the timing. One model brings rain chances into New England Thursday night, while other international models delay the more significant precipitation chances until Friday.
Confidence in the exact timing of rain and thunderstorm chances later this week remains lower than average. For now, the forecast carries general chances for showers and thunderstorms through much of the Friday and Saturday period. It will not be raining continuously, but identifying the dry periods remains difficult at this range.
At this time, the best opportunity for showers and thunderstorms appears to be Friday afternoon and Friday evening as the first upper-level disturbance approaches. Additional rain chances may increase Saturday and Saturday night, especially south of the Massachusetts Turnpike and along the south coast, as another disturbance moves through or just south of southern New England.
Although upper-level winds will be strong enough to support organized storms, extensive cloud cover and high humidity are expected to limit daytime heating and atmospheric instability. As a result, the potential for severe weather currently appears low. A strong storm or two cannot be ruled out Friday, but the overall risk for severe thunderstorms remains limited.
High pressure and dry weather are expected to return later in the weekend.
Countdown to Autumn
Autumn Begins on: September 23, 2026 at 2:05 AM EDT
92Days18Hours28Mins13Secs
Five Day Daily Temperature Run - Peterborough, NH
Updated Every Morning
Normal Daily Averages
High Temperature: 75 Degrees - Low Temperature: 53 Degrees
(Tip: Place your cursor over the bar below to see the number)
Weather News/Headlines of Interest
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