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.

Light Rain

68°F

20°C

Humidity 84%
Wind Speed NW 3 mph
Barometer 30.02 in (1015.9 mb)
Dewpoint 63°F (17°C)
Visibility 9.00 mi
Last update 30 Aug 7:53 pm EDT
Extended Forecast for

Grantham NH

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 54. West wind around 5 mph becoming calm.

    Low: 54 °F

    Patchy Fog

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming west around 5 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: A 50 percent chance of showers, mainly after 11pm. Patchy fog after 4am. Otherwise, cloudy, with a low around 57. Calm wind. New precipitation amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Showers. Patchy fog before 9am. High near 70. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 70 °F

    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Showers, mainly before 2am. Low around 55. East wind around 5 mph. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 57. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Thursday

    Thursday: A 50 percent chance of showers. Mostly cloudy, with a high near 74.

    High: 74 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 54. West wind around 5 mph becoming calm.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming west around 5 mph.
Monday Night
A 50 percent chance of showers, mainly after 11pm. Patchy fog after 4am. Otherwise, cloudy, with a low around 57. Calm wind. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers. Patchy fog before 9am. High near 70. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.
Tuesday Night
Showers, mainly before 2am. Low around 55. East wind around 5 mph. Chance of precipitation is 80%.
Wednesday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Wednesday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 57. Chance of precipitation is 80%.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 74.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 57.
Friday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 74.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 72.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grantham NH
 43.49°N 72.12°W (Elev. 1070 ft)
Last Update:
2:26 pm EDT Aug 30, 2026
Forecast Valid:
8pm EDT Aug 30, 2026-6pm EDT Sep 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