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.

Overcast

62°F

17°C

Humidity 93%
Wind Speed Calm
Barometer 30.06 in (1017.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 1 Sep 11:53 am EDT
Extended Forecast for

Grantham NH

  • This Afternoon

    This Afternoon: Rain before 2pm, then showers likely, mainly between 2pm and 4pm. High near 67. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Rain

  • Tonight

    Tonight: Showers and thunderstorms likely. Patchy fog after 4am. Otherwise, cloudy, with a low around 55. Southeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 68. Southeast wind around 5 mph.

    High: 68 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Showers, mainly after 7pm. Low around 57. Southeast wind around 5 mph. Chance of precipitation is 100%.

    Low: 57 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before 5pm. Mostly cloudy, with a high near 75. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain before 2pm, then showers likely, mainly between 2pm and 4pm. High near 67. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers and thunderstorms likely. Patchy fog after 4am. Otherwise, cloudy, with a low around 55. Southeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 68. Southeast wind around 5 mph.
Wednesday Night
Showers, mainly after 7pm. Low around 57. Southeast wind around 5 mph. Chance of precipitation is 100%.
Thursday
Showers likely, mainly before 5pm. Mostly cloudy, with a high near 75. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 51.
Labor Day
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:
6:33 am EDT Sep 1, 2026
Forecast Valid:
12pm EDT Sep 1, 2026-6pm EDT Sep 7, 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