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

Lebanon Municipal Airport (KLEB)

Lat: 43.63°NLon: 72.31°WElev: 558ft.

Fair

75°F

24°C

Humidity 42%
Wind Speed SW 7 mph
Barometer 29.90 in (1011.6 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 24 Aug 5:53 pm EDT
Extended Forecast for

Grantham NH

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly sunny, with a high near 74. Southwest wind around 5 mph.

    High: 74 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Patchy Fog

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 75. Calm wind becoming west around 5 mph in the afternoon.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Calm wind becoming northwest around 5 mph.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 79.

    High: 79 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 74. Southwest wind around 5 mph.
Tonight
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 53. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 75. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 54. Calm wind.
Wednesday
Mostly sunny, with a high near 80. Calm wind becoming northwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers before 9pm. Partly cloudy, with a low around 55.
Saturday
Sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grantham NH
 43.51°N 72.12°W (Elev. 1142 ft)
Last Update:
2:20 pm EDT Aug 24, 2026
Forecast Valid:
5pm EDT Aug 24, 2026-6pm EDT Aug 31, 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