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Hazardous Weather Conditions

Current conditions at

Nashua - Boire Field Airport (KASH)

Lat: 42.78°NLon: 71.51°WElev: 180ft.

Partly Cloudy

88°F

31°C

Humidity 48%
Wind Speed S 8 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 30 Jun 1:56 pm EDT
Extended Forecast for

Windham NH

Extreme Heat Warning July 1, 11:00am until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • This Afternoon

    This Afternoon: Mostly sunny and hot, with a high near 91. Southwest wind around 5 mph.

    High: 91 °F

    Hot

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers after 2am. Partly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind around 5 mph.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. Southwest wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. West wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 76.

    Low: 76 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 91. Southwest wind around 5 mph.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers after 2am. Partly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 76. Southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 100. West wind 5 to 10 mph.
Thursday Night
Clear, with a low around 76.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 73.
Independence Day
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Sunday
Mostly sunny and hot, with a high near 92.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Windham NH
 42.81°N 71.29°W (Elev. 249 ft)
Last Update:
6:48 am EDT Jun 30, 2026
Forecast Valid:
2pm EDT Jun 30, 2026-6pm EDT Jul 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation