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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 42.86°N 71.37°W (Text-Only)
NWS Forecast for: Londonderry NH
Issued by: National Weather Service Gray/Portland, ME
Last Update: 6:48 am EDT Jun 30, 2026		Print

  • Today

    Today: Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 91 °F

    Hot



  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly 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 98. Heat index values as high as 110. West wind 5 to 10 mph.

    High: 98 °F

    Hot



  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 75. Southwest wind around 5 mph.

    Low: 75 °F

    Mostly Clear



  • Thursday

    Thursday: Sunny and hot, with a high near 101. West wind 5 to 10 mph.

    High: 101 °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 100.

    High: 100 °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 95.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms



    • Today: Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly 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 98. Heat index values as high as 110. West wind 5 to 10 mph.

    Wednesday Night: Mostly clear, with a low around 75. Southwest wind around 5 mph.

    Thursday: Sunny and hot, with a high near 101. West wind 5 to 10 mph.

    Thursday Night: Clear, with a low around 76.

    Friday: Sunny and hot, with a high near 100.

    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 95.

    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 68. Chance of precipitation is 30%.

    Sunday: Mostly sunny and hot, with a high near 92.

    Sunday Night: Partly cloudy, with a low around 65.

    Monday: Mostly sunny, with a high near 87.


    Londonderry NH
     42.86°N 71.37°W (Elev. 397 ft)

    Visit your local NWS office at: https://www.weather.gov/gyx/