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

42°F

6°C

Humidity 53%
Wind Speed Calm
Barometer 30.49 in (1032.8 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 12 Apr 8:53 am EDT
Extended Forecast for

Grantham NH

  • Today

    Today: Increasing clouds, with a high near 53. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 53 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Rain, mainly before 4am. Low around 39. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain

  • Monday

    Monday: A slight chance of rain between 9am and 10am, then a chance of showers after 10am. Mostly cloudy, with a high near 63. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 9pm. Mostly cloudy, with a low around 54. West wind around 5 mph.

    Low: 54 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 74. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 74 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after 5pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

Detailed Forecast

Today
Increasing clouds, with a high near 53. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Rain, mainly before 4am. Low around 39. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A slight chance of rain between 9am and 10am, then a chance of showers after 10am. Mostly cloudy, with a high near 63. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 30 percent chance of showers before 9pm. Mostly cloudy, with a low around 54. West wind around 5 mph.
Tuesday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 74. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 57.
Wednesday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 72.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53.
Thursday
Showers likely, mainly after 5pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers before 3am. Mostly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grantham NH
 43.49°N 72.12°W (Elev. 1070 ft)
Last Update:
6:35 am EDT Apr 12, 2026
Forecast Valid:
9am EDT Apr 12, 2026-6pm EDT Apr 18, 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