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      Elev 116 ft, 39.102 °N 77.235 °W

      North Potomac, MD

      North Potomac Station72°
      Updated: 11:57 PM EDT on September 20, 2026 (GMT -4)
      17 seconds ago
      82°
      69°
      72
      Feels Like 72
      Cloudy
      N
      4
      Lower 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 64°f
         15% Precip. / 0 in
        Cloudy skies early, then partly cloudy after midnight. Slight chance of a rain shower. Low 64F. Winds light and variable.
        Tomorrow
        Mon 09/21
        High 70°f
         64% Precip. / 0.13 in
        Cloudy with rain developing later in the day. High near 70F. Winds NE at 5 to 10 mph. Chance of rain 60%.
        Tomorrow night
        Mon 09/21
        Low 59°f
         75% Precip. / 0.26 in
        Rain showers in the evening will evolve into a more steady rain overnight. Low 59F. Winds ENE at 5 to 10 mph. Chance of rain 80%. Rainfall around a quarter of an inch.
        Hourly Forecast
        Now
        72°
        12AM
        72°
        1AM
        71°
        2AM
        70°
        3AM
        69°
        4AM
        68°
        5AM
        67°
        6AM
        66°
        6:55AM
        Sunrise
        7AM
        65°
        8AM
        66°
        9AM
        67°
        10AM
        68°
        11AM
        69°
        12PM
        70°
        1PM
        35%
        69°
        2PM
        64%
        68°
        3PM
        65%
        67°
        4PM
        51%
        66°
        5PM
        39%
        66°
        6PM
        39%
        66°
        7PM
        31%
        65°
        7:07PM
        Sunset
        8PM
        53%
        63°
        9PM
        47%
        62°
        10PM
        70%
        62°
        11PM
        46%
        62°
        Precipitation
        70%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        54
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.94 in
        2. Visibility 9 miles
        3. Clouds Cloudy
        4. Dew Point70°F
        5. Humidity 92%
        6. Rainfall 0.38 in
        7. Snow Depth 0 in
         KGAI Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 76°F 91°F 1965
        4. Low 69°F 58°F 37°F 1962
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 75°F 95°F
        4. Low 69°F 58°F 38°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:55 AM 7:07 PM
        3. Civil Twilight 6:29 AM 7:34 PM
        4. Nautical Twilight 5:57 AM 8:05PM
        5. Astronomical Twilight 5:25 AM 8:37 PM
        1. Length of Visible Light 13h 5m
        2. Length of Day 12h 11m
        3. Tomorrow will be 2 minutes 32 seconds shorter
        1. Moon 4:42 PM 1:28 AM
        2. Waxing Gibbous77% 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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