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      Elev 1100 ft, 43.498 °N 72.126 °W

      Grantham, NH

      Grantham Station51°
      Updated: 3:59 PM EDT on September 20, 2026 (GMT -4)
      5 minutes ago
      53°
      43°
      51
      Feels Like 51
      Cloudy
      N
      3
      Higher temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Tonight
        Sun 09/20
        Low 45°f
         65% Precip. / 0.04 in
        Showers early, then cloudy overnight. Low near 45F. Winds light and variable. Chance of rain 70%.
        Tomorrow
        Mon 09/21
        High 61°f
         20% Precip. / 0 in
        Areas of fog early, then partly cloudy in the afternoon. High 61F. Winds N at 5 to 10 mph.
        Tomorrow night
        Mon 09/21
        Low 41°f
         6% Precip. / 0 in
        Partly cloudy skies in the evening, then becoming cloudy overnight. Low 41F. Winds light and variable.
        Hourly Forecast
        Now
        51°
        4PM
        48%
        51°
        5PM
        59%
        51°
        6PM
        65%
        51°
        6:49PM
        Sunset
        7PM
        76%
        51°
        8PM
        43%
        50°
        9PM
        50°
        10PM
        50°
        11PM
        49°
        12AM
        50°
        1AM
        49°
        2AM
        49°
        3AM
        48°
        4AM
        48°
        5AM
        47°
        6AM
        47°
        6:34AM
        Sunrise
        7AM
        46°
        8AM
        16%
        47°
        9AM
        21%
        49°
        10AM
        51°
        11AM
        54°
        12PM
        56°
        1PM
        58°
        2PM
        59°
        3PM
        59°
        Precipitation
        76%
        Rain expected around 4:30 PM
        Pollen
        None
        Air Quality
        14
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.02 in
        2. Visibility 2.9 miles
        3. Clouds Cloudy
        4. Dew Point50°F
        5. Humidity 96%
        6. Rainfall 0.04 in
        7. Snow Depth 0 in
         KLEB Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 53°F 69°F 82°F 1985
        4. Low 43°F 49°F 29°F 1964
        5. Rain/Snow Depth
        6. Precipitation 0.04 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 61°F 68°F 83°F
        4. Low 43°F 48°F 30°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:33 AM 6:49 PM
        3. Civil Twilight 6:05 AM 7:18 PM
        4. Nautical Twilight 5:31 AM 7:51PM
        5. Astronomical Twilight 4:56 AM 8:25 PM
        1. Length of Visible Light 13h 12m
        2. Length of Day 12h 15m
        3. Tomorrow will be 2 minutes 58 seconds shorter
        1. Moon 4:03 PM -
        2. Waxing Gibbous68% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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