National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Nashua - Boire Field Airport (KASH)

Lat: 42.78°NLon: 71.51°WElev: 180ft.

Fair

84°F

29°C

Humidity 46%
Wind Speed Calm
Barometer 29.95 in (1014.0 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 12 Aug 7:56 pm EDT
Extended Forecast for

Windham NHSimilar City Names

Heat Advisory August 12, 08:11pm until August 13, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 12, 08:11pm until August 13, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 94 °F

    Hot

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Mostly cloudy, with a low around 71. 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.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 87. West wind around 5 mph. Chance of precipitation is 70%.

    High: 87 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Partly cloudy, with a low around 64. Calm wind becoming north around 5 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 71. Calm wind.
Wednesday
Sunny and hot, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Mostly cloudy, with a low around 71. 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.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 87. West wind around 5 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Partly cloudy, with a low around 64. Calm wind becoming north around 5 mph. Chance of precipitation is 40%.
Friday
Sunny, with a high near 83.
Friday Night
Clear, with a low around 58.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny and hot, with a high near 91.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Windham NHSimilar City Names
 42.79°N 71.3°W (Elev. 194 ft)
Last Update:
6:46 pm EDT Aug 12, 2025
Forecast Valid:
8pm EDT Aug 12, 2025-6pm EDT Aug 19, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation