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

63°F

17°C

Humidity 97%
Wind Speed Calm
Barometer 30.13 in (1019.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 2 Sep 12:53 am EDT
Extended Forecast for

Grantham NH

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 70. Southeast wind around 5 mph.

    High: 70 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Showers likely, then showers and possibly a thunderstorm after 2am. Patchy fog after 1am. Low around 56. Southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Chance
    Showers then
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers, mainly before 2pm. Areas of fog before 10am. High near 69. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 80%.

    High: 69 °F

    Showers and
    Areas Fog

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, cloudy, with a low around 56. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 70. Southeast wind around 5 mph.
Wednesday Night
Showers likely, then showers and possibly a thunderstorm after 2am. Patchy fog after 1am. Low around 56. Southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers, mainly before 2pm. Areas of fog before 10am. High near 69. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 61. Calm wind.
Friday
Mostly sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 50.
Labor Day
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 71.
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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:
9:22 pm EDT Sep 1, 2026
Forecast Valid:
1am EDT Sep 2, 2026-6pm EDT Sep 8, 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