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Mostly Sunny Today - Not as Hot/Humid

Increasing Clouds Tonight

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Last Complete Site Update: 7/05 - 6:28 AM

Weather for New England and the Northeast

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Today’s Weather at a Glance

Updated Every Morning and as Needed Through the Day

(Averages Across Southern NH)
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High Temperature
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Probability of Precipitation - Daytime
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Low Temperature
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Probability of Precipitation - Nighttime
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Today in Peterborough, NH at a Glance

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Today in Nashua, NH at a Glance

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Your Daily Forecast - Three Days at a Time

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Monday/Monday Night - July 6

Nashua - East

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Cloudy, with a high near 77. Calm wind becoming east around 5 mph in the afternoon.

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Showers likely, mainly after midnight. Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm. Chance of precipitation is 60%.

Peterborough - Central/West

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Cloudy, with a high near 73. Calm wind becoming east around 5 mph in the afternoon.

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Showers likely, mainly after 1am. Mostly cloudy, with a low around 54. East wind around 5 mph becoming calm. Chance of precipitation is 60%.

Tuesday/Tuesday Night - July 7

Nashua - East

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Showers likely, mainly before 2pm. Mostly cloudy, with a high near 72. Northeast wind 5 to 10 mph. Chance of precipitation is 60%.

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A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 55.

Peterborough - Central/West

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Showers likely, mainly before 1pm. Mostly cloudy, with a high near 69. East wind 5 to 10 mph. Chance of precipitation is 60%.

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A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 54.

Wednesday/Wednesday Night - July 8

Nashua - East

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Partly sunny, with a high near 82.

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Partly cloudy, with a low around 62.

Peterborough - Central/West

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Mostly sunny, with a high near 80.

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Partly cloudy, with a low around 61.

Thursday/Thursday Night - July 9

Nashua - East

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Peterborough - Central/West

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Friday/Friday Night - July 10

Nashua - East

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Peterborough - Central/West

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Saturday/Saturday Night - July 11

Nashua - East

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Peterborough - Central/West

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Sunday/Sunday Night - July 5

Nashua - East

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Mostly sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the afternoon.

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Increasing clouds, with a low around 61. Southeast wind around 5 mph becoming calm.

Peterborough - Central/West

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Mostly sunny, with a high near 82. Calm wind.

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Increasing clouds, with a low around 58. Calm wind.

Current Weather Readings in Peterborough, NH

Time of the readings below: 5 Jul 2026 1:06 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: 

80.5°F (1.1)

High Temperature:

80.6 at 12:15 PM

Low Temperature:

59.8 at 6:11 AM

Precipitation Today:

0.00 inches

Current Dewpoint:

63.3°F (1.0)

Highest Heat Index Reading:

82.1 at 12:20 PM

Current Windspeed:

1 MPH (1)

Barometric Trend:

Steady

Hours of Daylight Today:

15:13

Link to my Active Weather Instruments

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Information for New England

Rich's Weather Discussion

New Hampshire/North Briefing

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Massachusetts/South Briefing

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At this moment: 7/05 - 12:25 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: 

There will be NO morning update on July 9. The evening update will be on schedule.

Minor update at Noon. 
When you open your doors and windows this morning you will find delightfully refreshing air awaiting you outside. Enjoy this respite from the summer heat, by Thursday we are back in the 90s.

A refreshing break from the recent heat and humidity arrives today as much drier air settles across New England. Comfortable conditions will continue through Monday before the next opportunity for rain develops on Tuesday, mainly across southern New Hampshire where the best chance for a soaking rainfall exists. By the second half of the week, warmer and more humid weather returns, with temperatures climbing well into the 80s and possibly reaching the lower 90s in some locations by late week.

Check out the enhanced "Todays Weather at a Glance" section above.
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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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Looking for Radar? Try the Radar Page.
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On this day in history:
On this day in 1776, the Continental Congress formally adopted the Declaration of Independence, announcing the American colonies' separation from Great Britain and giving birth to a new nation.

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Latest site updates and additions:

Find the July 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: 06/27 - Next Update: 07/10 (or thereabouts)
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Weather Summaries and Full Area Forecast Discussions - North (Edited)

Summary - Northern New England - New Hampshire and Maine

Summary:
A refreshing break from the recent heat and humidity arrives today as much drier air settles across New England. Comfortable conditions will continue through Monday before the next opportunity for rain develops on Tuesday, mainly across southern New Hampshire where the best chance for a soaking rainfall exists. By the second half of the week, warmer and more humid weather returns, with temperatures climbing well into the 80s and possibly reaching the lower 90s in some locations by late week.

Key Messages:
 - Much more comfortable weather for today.
 - Precipitation chances are centered on Tuesday. The greatest chance for soaking rainfall will be across southern New Hampshire.
 - Warming by late week with hot and humid conditions returning.

What has changed since the last Forecast Update?
There is little change to the overall forecast. Monday is now expected to be somewhat drier than previously forecast.

What this means for you:
Today will be one of the most comfortable days in quite a while, with warm afternoons but much lower humidity making outdoor activities far more pleasant. Most areas stay dry through Monday before rain becomes possible Tuesday, especially near the Massachusetts border. Northern New Hampshire and much of interior Maine may receive little or no precipitation. After midweek, summer heat and humidity gradually return, with the potential for hot conditions and a chance of thunderstorms toward the end of the week.

Click the Open/Close Button to Display the Full Edited Area Forecast Discussion

**Area Forecast Discussion**
**National Weather Service Gray ME**
**230 AM EDT Sunday July 5 2026**

**What Has Changed**


There is little change to the overall forecast. Monday is now expected to be somewhat drier than previously forecast.

**Key Messages**

1. Much more comfortable weather for today.

2. Precipitation chances are centered on Tuesday. The greatest chance for soaking rainfall will be across southern New Hampshire.

3. Warming by late week with hot and humid conditions returning.

**Discussion**

**Key Message 1 Description**


A cold front has moved through the region, bringing in a much drier air mass. Afternoon temperatures will remain seasonably warm, reaching the 80s, but dew points in the 50s will keep humidity low, making it feel much more comfortable than recent days. Along the coast, an afternoon sea breeze will provide additional cooling.

High pressure remains in control tonight, keeping most areas dry. There is only a very small chance of an isolated shower across southern New Hampshire late tonight as a weather system passes south of New England.

**Key Message 2 Description**

The cold front that moved through yesterday will stall over the Mid Atlantic before drifting slightly northward Monday into Tuesday. As this happens, a developing area of low pressure will move east along the front.

Most forecast guidance keeps this storm track well south of northern New England, although a few forecast scenarios bring it closer to southern New England. Because of this, northern New England is expected to remain on the cooler, more stable side of the storm, unlike earlier forecasts from last week.

Current guidance indicates about a 30 percent chance that precipitation will exceed one inch from Concord through Manchester to Portsmouth. Those probabilities decrease significantly across interior New Hampshire and much of Maine. Near the Massachusetts and New Hampshire border, there is about a 20 percent chance of more than two inches of precipitation.

A soaking rainfall remains possible, especially across southern New England, where forecast models continue to show the greatest potential. However, more stable air north of the front should limit heavier downpours, resulting in steadier, lighter rainfall instead of strong thunderstorms. Canadian high pressure to the north should also help keep much of the region dry through at least Monday.

Exactly how far north the rainfall reaches on Tuesday remains uncertain, as the northern edge of precipitation can be difficult to forecast. At a minimum, northern New Hampshire and interior Maine are likely to receive little or no precipitation, while the highest totals remain near the Massachusetts border.

**Key Message 3 Description**

High pressure returns by the middle of the week, bringing a warming and drying trend. By late week, this high pressure system shifts offshore into the classic Bermuda High pattern, allowing warm southwest winds to develop across the region.

Temperatures about 5,000 feet above the ground are forecast to warm from around 54 degrees Tuesday to about 63 degrees by Thursday night. This warmer air aloft, combined with July sunshine and warm air moving into the region, will likely lead to very warm conditions by the end of the week.

Afternoon highs are expected to reach well into the 80s from Wednesday through Friday, with some locations potentially reaching the lower 90s if conditions come together favorably.

Late in the week, another upper level weather disturbance moving southeast out of Canada could bring the next chance for thunderstorms. Humidity levels are expected to increase significantly by Friday, with dew points approaching 70 degrees. However, current forecast guidance suggests the atmosphere may not become especially unstable. There is also no indication of an **Elevated Mixed Layer (EML)**, a layer of very warm, dry air several thousand feet above the ground that can sometimes contribute to more intense thunderstorms.

Weather Summaries and Full Area Forecast Discussions - South (Edited)

Summary - Southern New England - Massachusetts/Northern CT/Rhode Island

Summary:
A much more comfortable day is expected across southern New England with seasonable temperatures and only a few isolated showers. Attention then turns to late tonight through Tuesday, when confidence continues to increase that periods of heavy rain could develop, especially across Connecticut, where a Flood Watch has been issued. Some areas could see enough rainfall to cause localized flash flooding. Drier weather returns by Wednesday, followed by a return to warm and humid summer conditions later in the week with another chance for showers and thunderstorms by Friday into Saturday.

Key Messages:
 - Cooler, seasonable temperatures return today with highs mainly in the upper 70s to the middle 80s. Mainly dry today outside a few showers across western Massachusetts, Connecticut, and near the south coast.
 - Confidence is increasing in the potential for bands of heavy rainfall and the risk of localized flash flooding late tonight into Tuesday. The greatest risk is currently across northern Connecticut, where a Flood Watch has been issued.
 - Summer warmth and humidity return during the latter half of the week. A few showers and thunderstorms are possible by Friday into Saturday.

What has changed since the last Forecast Update?
A Flood Watch has been issued for Connecticut.

What this means for you
Today will be a welcome break from the recent heat, with comfortable temperatures and mostly dry weather for many locations. If you live in or plan to travel through Connecticut late tonight through Tuesday, stay alert for the possibility of heavy rain and localized flash flooding, especially in areas prone to poor drainage or near small streams. Conditions improve by midweek before typical summer warmth and humidity return later in the week.

Click the Open/Close Button to Display the Full Edited Area Forecast Discussion

**Area Forecast Discussion**
National Weather Service Boston/Norton MA
**449 AM EDT Sunday, July 5, 2026**

**What Has Changed**


A Flood Watch has been issued for Connecticut.

**Key Messages**

* Cooler, seasonable temperatures return today with highs mainly in the upper 70s to the middle 80s. Mainly dry today outside a few showers across western Massachusetts, Connecticut, and near the south coast.

* Confidence is increasing in the potential for bands of heavy rainfall and the risk of localized flash flooding late tonight into Tuesday. The greatest risk is currently across northern Connecticut, where a Flood Watch has been issued.

* Summer warmth and humidity return during the latter half of the week. A few showers and thunderstorms are possible by Friday into Saturday.

**Discussion**

**Cooler and More Comfortable Today**


The upper level ridge of high pressure that brought the recent heat has finally weakened across the region, allowing cooler, more seasonable air to return today. High temperatures will mainly range from the upper 70s to the middle 80s degrees.

A mix of clouds is expected across much of southern New England as a weak weather boundary slowly lifts north through the area. Most locations will remain dry, although a few showers are possible across western Massachusetts, Connecticut, and near the south coast where deeper moisture is available.

**Heavy Rain and Flash Flood Risk Late Tonight Through Tuesday**

Confidence continues to increase that bands of heavy rainfall could develop late tonight through Tuesday. Forecasting exactly where the heaviest rain will fall remains challenging because small scale weather features can shift the location of the most intense rainfall.

A weak area of high pressure over eastern Canada will help position a stalled surface boundary across the region. Just above the ground, easterly to east southeasterly winds of 25 to 35 knots will transport very moist air into southern New England. Atmospheric moisture levels will reach between 1.5 and over 2 inches, creating an environment favorable for heavy rain with embedded thunderstorms.

Large scale weather systems, known as synoptic scale forcing, will combine with abundant summer moisture and atmospheric instability to produce narrow bands of torrential rainfall. While forecast models are becoming increasingly effective at identifying the potential for these heavy rain events, they are still less reliable at pinpointing their exact location because of smaller scale weather influences.

Current guidance favors southwestern portions of the forecast area, particularly Connecticut, where the deepest moisture is expected.

A Flood Watch has therefore been issued for all of Connecticut. Widespread precipitation amounts of 1 to 3 inches are expected, with localized narrow bands capable of producing 4 to 6 inches of rainfall within six hours. If those heavier bands develop, urban flooding and rapid rises on small streams could result in localized flash flooding late tonight through Tuesday.

The Flood Watch could eventually be expanded farther north and east if confidence increases. It is also possible that the heaviest rain remains southwest of the region, but enough uncertainty exists to justify highlighting the flood potential across Connecticut.

**Summer Warmth Returns Later This Week**

Drier weather is expected to return by Wednesday as an upper level disturbance, known as a shortwave trough, moves away from the region.

By the latter part of the week, winds will shift to the west, bringing back typical summer warmth and humidity. While it will become warmer, temperatures are not expected to reach the extreme levels experienced over the past several days.

Another upper level disturbance may approach by Friday into Saturday, bringing the chance for a few showers and thunderstorms.

Countdown to Autumn

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Autumn Begins on: September 23, 2026 at 2:05 AM EDT

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Five Day Daily Temperature Run - Peterborough, NH
Updated Every Morning

Normal Daily Averages
High Temperature: 78 Degrees - Low Temperature: 56 Degrees

(Tip: Place your cursor over the bar below to see the number)

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