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Last Complete Site Update: 8/27 - 4:14 PM
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"August was nearly over - the month of apples and falling stars, the last care-free month for the school children. The days were not hot, but sunny and limpidly clear -
the first sign of advancing autumn."
- Viktor Nekrasov
Today’s Weather at a Glance
Updated Every Morning and as Needed Through the Day
(Averages Across Southern NH)
82Degrees
High Temperature
50%
Probability of Precipitation - Daytime
64Degrees
Low Temperature
30%
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
No Active Advisories
None
Monday/Monday Night - August 31
Nashua - East
Peterborough - Central/West
Tuesday/Tuesday Night - September 1
Nashua - East
Peterborough - Central/West
Wednesday/Wednesday Night - Septemeber 2
Nashua - East
Peterborough - Central/West
Thursday/Thursday Night - August 27
Nashua - East
A chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 67. South wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Peterborough - Central/West
A chance of showers and thunderstorms. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 63. Southwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday/Friday Night - August 28
Nashua - East
A 40 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Partly cloudy, with a low around 56. Calm wind.
Peterborough - Central/West
A 20 percent chance of showers and thunderstorms after noon. Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 79. Calm wind becoming west around 5 mph.
Partly cloudy, with a low around 51. Calm wind.
Saturday/Saturday Night - August 29
Nashua - East
Sunny, with a high near 83. Calm wind.
Partly cloudy, with a low around 59.
Peterborough - Central/West
Sunny, with a high near 77. Calm wind becoming west around 5 mph.
Mostly clear, with a low around 56.
Sunday/Sunday Night - August 30
Nashua - East
Sunny, with a high near 86.
A 30 percent chance of showers after 4am. Partly cloudy, with a low around 64.
Peterborough - Central/West
Mostly sunny, with a high near 81.
A 30 percent chance of showers after 3am. Partly cloudy, with a low around 61.
Current Weather Readings in Peterborough, NH
Time of the readings below: 28 Aug 2026 1:20 AM
(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:
67.1°F (-1.4)
High Temperature:
68.8 at 12:00 AM
Low Temperature:
67.1 at 1:18 AM
Precipitation Today:
0.00 inches
Current Dewpoint:
63.7°F (-0.7)
Highest Heat Index Reading:
68.8 at 12:00 AM
Current Windspeed:
0 MPH (0)
Barometric Trend:
Steady
Hours of Daylight Today:
13:19
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 & Mosquito Outlook for Southern NH
Rich's Weather Discussion
New Hampshire/North Briefing
Massachusetts/South Briefing
At this moment: 8/27 - 4:14 PM
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:
The regular schedule continues.
The sun has popped out here in South Central New Hampshire for a while, now we are cloudy once again. It is breezy and the dewpoint is at 65 degrees, giving us a muggy feel. Isolated to widely scattered showers and thunderstorms remain possible through this evening as a cold front approaches. Additional showers and gusty thunderstorms are possible Friday afternoon.
A few showers and thunderstorms remain possible through this evening as a cold front approaches. Friday brings another chance for showers and gusty thunderstorms, mainly during the afternoon and early evening. A cooler and much drier air mass arrives for the weekend, bringing mostly sunny skies and lower humidity Saturday and much of Sunday. Rain chances increase again from late Sunday into next week as a stationary front settles near New England.
The next named hurricane in the Atlantic is scheduled to be "Dolly."
8/26 - From the Weather Channel:
Dolly Parton, whose weather-struck lyrics captivated us for decades, passed away yesterday at 80 years of age, and she will be greatly missed. I didn't really understand the scale of Parton's impact until I had a child and learned about Dolly Parton's Imagination Library, a truly incredible civic project that has gifted over 300 million high-quality, age-appropriate books into the hands of young readers since its inception in 1995.
As if penning over 3,000 songs, hitting number one 25 times, and winning all the awards wasn't enough! The artist, who once quipped that it's tough to be a diamond in a rhinestone world, leaves a glittering legacy behind. In one of those poignant coincidences that sounds, well, straight out of a Dolly Parton song, the next named tropical storm in the Atlantic will be - Dolly. Really. And it could happen in the next week.
Let's end with a few of Parton's own words. In her book, "Dream More: Celebrate the Dreamer in You," she writes, "I make a point to appreciate all the little things in my life. I go out and smell the air after a good, hard rain. I re-read passages from my favorite books. I hold the little treasures that somebody special gave me. These small actions help remind me that there are so many great, glorious pieces of good in the world."
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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 1859, Edwin L. Drake struck oil at 69¬? feet in Titusville, Pennsylvania, discovering America's first commercial oil well.
Latest site updates and additions:
08/17 - See the First look at Autumn Maps and info here
Find the August Almanac Here
Hurricane Season began on June 1st - Details and forecasts can be found here.
07/17 - Find the Mosquito Outlook in the Heath Section. Added Mosquito forecast for Nashua
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: 08/15 - Next Update: 08/31 (or thereabouts)
Weather Summaries and Full Area Forecast Discussions - North (Edited)
Summary - Northern New England - New Hampshire and Maine
Summary:
A few showers and thunderstorms remain possible through this evening as a cold front approaches. Friday brings another chance for showers and gusty thunderstorms, mainly during the afternoon and early evening. A cooler and much drier air mass arrives for the weekend, bringing mostly sunny skies and lower humidity Saturday and much of Sunday. Rain chances increase again from late Sunday into next week as a stationary front settles near New England.
Key Messages:
- Isolated to widely scattered showers and thunderstorms remain possible through this evening as a cold front approaches. Additional showers and gusty thunderstorms are possible Friday afternoon.
- High pressure brings fair weather with lower humidity over the weekend. Rain chances return late Sunday through mid week as a stationary front sets up near New England.
What has changed since the last Forecast Update?
No significant changes since the previous forecast cycle.
What this means for you:
Expect a few showers or thunderstorms this evening, but widespread severe weather is not expected. Friday afternoon could bring additional showers and thunderstorms, with a few storms producing gusty winds. Saturday looks like the pick of the weekend, with sunshine, lower humidity, and comfortable temperatures. Sunday starts out pleasant, but showers and thunderstorms become more likely in northern areas later in the day. Rain chances increase again Tuesday and Wednesday.
Click the Open/Close Button to Display the Full Edited Area Forecast Discussion
**Area Forecast Discussion, National Weather Service Gray ME, 234 PM EDT Thu
Aug 27 2026**
**Synopsis**
**What has changed**
No significant changes since the previous forecast cycle.
**Key Messages**
1. Isolated to widely scattered showers and thunderstorms remain possible through this evening as a cold front approaches. Additional showers and gusty thunderstorms are possible Friday afternoon.
2. High pressure brings fair weather with lower humidity over the weekend. Rain chances return late Sunday through mid week as a stationary front sets up near New England.
**Discussion**
**Key Message 1**
Satellite imagery this afternoon shows an advancing area of high clouds moving across the region from the west, along with some developing cumulus clouds.
The latest SPC analysis shows around 500 J/kg of MU/MLCAPE, which is a measure of the amount of atmospheric instability available to thunderstorms. Mid-level lapse rates are around 5.5 degrees C per kilometer, meaning temperatures are decreasing with height at a rate that can support some instability.
However, effective bulk shear is rather weak at around 25 knots. Wind shear describes how much wind speed and direction change with height. The combination of weak wind shear and limited atmospheric forcing should prevent widespread shower and thunderstorm development through the rest of today.
A few showers and thunderstorms remain possible through sunset, with some storms potentially producing gusty winds.
Showers will diminish tonight, but clouds will largely remain in place. Overnight lows will mainly be in the 60s. Fog is likely to develop, resulting in reduced visibility.
Fog will lift Friday morning, with partly cloudy skies allowing temperatures to reach the lower to middle 80s south of the mountains. A cold front will cross from the north during the afternoon and early evening. Daytime instability and some wind shear should allow showers and thunderstorms to develop. A few storms may contain gusty winds.
Cooler temperatures will arrive behind the cold front, with Friday night lows in the 40s and 50s.
**Key Message 2**
Broad high pressure builds in from the west Saturday behind the departing cold front. A drier air mass will move into the region, with dew points in the 40s and 50s. Dew point is a measure of the amount of moisture in the air, so these lower values will mean noticeably lower humidity.
Mostly sunny skies are expected Saturday, with highs in the 70s to low 80s.
High pressure shifts south Sunday as a trough moves across Atlantic Canada. A trough is an elongated area of lower pressure that can help produce clouds, showers, and thunderstorms. This feature will send a cold front into northern areas Sunday afternoon and evening, bringing a chance for showers and thunderstorms.
South of the mountains should remain dry with mostly sunny skies. Highs will range from the 70s north to the middle 80s south, with steady west southwest winds allowing temperatures to reach the middle 80s near the coast.
The cold front will push south through the rest of the area Sunday night and stall near southern New England Monday morning.
Winds several miles above the surface will become more west to east through the middle of next week, allowing the cold front to remain stationary near New England. The position of this stationary front will affect temperatures, with forecast models favoring the area to remain on the cooler side of the boundary.
The latest forecast guidance suggests the boundary will be far enough south to limit shower chances Monday. Forecast uncertainty increases Tuesday and Wednesday as waves of low pressure move west to east along the boundary.
The latest forecast guidance brings a 40 to 60 percent chance of precipitation during this period, which appears reasonable. There is a modest chance that portions of the forecast area could receive around 1 inch of precipitation by the second half of next week.
Weather Summaries and Full Area Forecast Discussions - South (Edited)
Summary - Southern New England - Massachusetts/Northern CT/Rhode Island
Summary:
A few stronger thunderstorms remain possible this afternoon and evening, with the greatest risk west of the Connecticut River Valley, especially across the Berkshires and points west. The severe weather threat has decreased overall, but gusty winds, small hail, and an isolated tornado cannot be ruled out. Friday will be mainly dry and pleasant, aside from a few brief showers or a thunderstorm. The weekend looks excellent, with sunshine, lower humidity, and seasonable temperatures. The pattern turns more unsettled Monday through midweek, with several opportunities for showers and thunderstorms, although the exact timing remains uncertain.
Key Messages:
- A few stronger storms are possible, mainly west of the Connecticut River Valley today.
- A spot shower or thunderstorm is possible Friday, otherwise a mainly dry and pleasant late summer day.
- Seasonable temperatures and dry weather this weekend.
- Cloudy and unsettled early to mid next week with several opportunities for showers and storms, but the timing remains uncertain.
What has changed since the last Forecast Update?
The overall threat for severe weather across southern New England has decreased. However, a risk for strong to severe storms remains for areas west of the Connecticut River through this evening.
What this means for you
If you are west of the Connecticut River Valley today, especially in the Berkshires, keep an eye on the sky for a stronger thunderstorm during the late afternoon and early evening. The main concern is gusty winds, with small hail and an isolated tornado also possible. Farther east, storm coverage and intensity should decrease. Friday may bring a brief shower or thunderstorm, but most of the day should be dry. Saturday and Sunday look like the best weather days, with comfortable temperatures and much lower humidity. More clouds, showers, and thunderstorms become possible next week.
Click the Open/Close Button to Display the Full Edited Area Forecast Discussion
**Area Forecast Discussion, National Weather Service Boston/Norton MA,
654 AM EDT Thu Aug 27 2026**
**What has changed**
No significant changes to the forecast.
**Key Messages**
* Scattered thunderstorms, some of which could be severe late today. A few hit-and-miss thunderstorms are possible again Friday afternoon.
* Mainly dry and seasonable weather follows for this weekend with comfortable humidity.
* A period or two of unsettled weather may return early next week with a backdoor cold front in the vicinity of southern New England. There is a large amount of uncertainty regarding temperatures, depending on the location of this front.
**Discussion**
**Key Message 1, Scattered thunderstorms, some of which could be severe late today**
There is still a decent setup for a few strong to severe thunderstorms across southern New England today. Forecast atmospheric instability, measured by CAPE, or Convective Available Potential Energy, is expected to reach about 1,000 to 1,500 J/kg. This indicates there will be enough energy available to support stronger thunderstorms.
Storm relative helicity, which measures how much the wind changes speed and direction with height and can help storms rotate, is expected to be around 50 to 100 m2/s2. The main limitation today will be timing. The question is whether the strongest instability and the most favorable wind conditions arrive across southern New England at the same time.
The greatest thunderstorm threat remains mainly to our west, potentially reaching as far east as the Connecticut River Valley. The most favorable wind conditions may arrive after atmospheric instability begins to decrease around sunset. This situation will need to be monitored, although the overall severe weather threat is only level 1 out of 5.
The primary concerns are damaging straight-line winds and possibly some hail. The wind environment does not completely rule out the possibility of a tornado.
There is also a level 1 out of 4 risk for localized flash flooding, mainly west of the Connecticut River.
A cold front should finally reach southern New England late tonight into Friday morning. Until the front moves offshore sometime Friday night, showers and some thunderstorms will remain possible. Because these storms will occur at a different time of day, severe weather is not expected Friday.
**Key Message 2, Mainly dry and seasonable weather this weekend**
High pressure builds into the region this weekend. This should result in mainly dry and seasonable weather with comfortable humidity.
**Key Message 3, Unsettled weather possible early next week**
The forecast for early next week remains highly uncertain. The main weather feature will be the position of a backdoor cold front, which is a front that moves into New England from the northeast or east rather than approaching from the usual west.
If this front moves more slowly, temperatures could be warmer across eastern Massachusetts on Monday. The front still appears likely to remain somewhere across eastern Massachusetts Tuesday into Wednesday.
This setup could allow an area of low pressure moving southeast from Canada to track directly across our region. While it will not rain continuously, showers and thunderstorms could occur at various times from Monday through Wednesday.
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: 74 Degrees - Low Temperature: 52 Degrees
(Tip: Place your cursor over the bar below to see the number)
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