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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: 12:38 am EST Dec 5, 2025		Print

  • Today

    Today: Sunny, with a high near 24. Wind chill values as low as -1. Calm wind becoming southwest around 5 mph.

    High: 24 °F

    Sunny



  • Tonight

    Tonight: Mostly cloudy, with a low around 12. Calm wind.

    Low: 12 °F

    Mostly Cloudy



  • Saturday

    Saturday: A 20 percent chance of snow showers before noon. Mostly cloudy, with a high near 35. Calm wind becoming south around 5 mph.

    High: 35 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 20. Calm wind becoming west around 5 mph after midnight.

    Low: 20 °F

    Partly Cloudy



  • Sunday

    Sunday: Partly sunny, with a high near 34. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 34 °F

    Partly Sunny



  • Sunday
    Night

    Sunday Night: A 50 percent chance of snow after 9pm. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow



  • Monday

    Monday: A 30 percent chance of snow before 7am. Mostly sunny, with a high near 23.

    High: 23 °F

    Chance Snow
    then Sunny


  • Monday
    Night

    Monday Night: Mostly clear, with a low around 1.

    Low: 1 °F

    Mostly Clear



  • Tuesday

    Tuesday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny



    • Today: Sunny, with a high near 24. Wind chill values as low as -1. Calm wind becoming southwest around 5 mph.

    Tonight: Mostly cloudy, with a low around 12. Calm wind.

    Saturday: A 20 percent chance of snow showers before noon. Mostly cloudy, with a high near 35. Calm wind becoming south around 5 mph.

    Saturday Night: Partly cloudy, with a low around 20. Calm wind becoming west around 5 mph after midnight.

    Sunday: Partly sunny, with a high near 34. Northwest wind around 5 mph becoming calm in the afternoon.

    Sunday Night: A 50 percent chance of snow after 9pm. Mostly cloudy, with a low around 14.

    Monday: A 30 percent chance of snow before 7am. Mostly sunny, with a high near 23.

    Monday Night: Mostly clear, with a low around 1.

    Tuesday: Partly sunny, with a high near 28.

    Tuesday Night: A chance of snow between 7pm and midnight. Mostly cloudy, with a low around 18. Chance of precipitation is 40%.

    Wednesday: Mostly cloudy, with a high near 40.

    Wednesday Night: Rain and snow likely. Cloudy, with a low around 30. Chance of precipitation is 60%.

    Thursday: A 40 percent chance of rain. Mostly cloudy, with a high near 39.


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

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