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      Elev 322 ft, 39.002 °N 77.201 °W

      Potomac, MD

      Potomac Station41°
      Updated: 7:50 AM EDT on October 21, 2026 (GMT -4)
      9 seconds ago
      67°
      41°
      41
      Feels Like 38
      Sunny
      N
      5
      Lower temperature is expected today
      Wundermap

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       Wundermap
      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
        Today
        Wed 10/21
        High 67°f
         2% Precip. / 0 in
        Sunny. High 67F. Winds N at 5 to 10 mph.
        Tonight
        Wed 10/21
        Low 40°f
         3% Precip. / 0 in
        A clear sky. Low around 40F. Winds light and variable.
        Tomorrow
        Thu 10/22
        High 69°f45°f
         3% Precip. / 0 in
        Mainly sunny. High 69F. Winds NNW at 5 to 10 mph.
        Hourly Forecast
        Now
        41°
        8AM
        42°
        9AM
        47°
        10AM
        52°
        11AM
        58°
        12PM
        61°
        1PM
        63°
        2PM
        65°
        3PM
        66°
        4PM
        65°
        5PM
        64°
        6PM
        61°
        6:21PM
        Sunset
        7PM
        57°
        8PM
        54°
        9PM
        51°
        10PM
        49°
        11PM
        48°
        12AM
        47°
        1AM
        46°
        2AM
        45°
        3AM
        44°
        4AM
        42°
        5AM
        42°
        6AM
        41°
        7AM
        41°
        Precipitation
        4%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        19
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.26 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point38°F
        5. Humidity 88%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KGAI Station History
        Almanac for October 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 64°F 84°F 1984
        4. Low 41°F 46°F 20°F 1917
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for October 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 64°F 84°F
        4. Low 40°F 46°F 20°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:24 AM 6:21 PM
        3. Civil Twilight 6:57 AM 6:48 PM
        4. Nautical Twilight 6:26 AM 7:19PM
        5. Astronomical Twilight 5:55 AM 7:50 PM
        1. Length of Visible Light 11h 51m
        2. Length of Day 10h 57m
        3. Tomorrow will be 2 minutes 23 seconds shorter
        1. Moon 4:02 PM 2:23 AM
        2. Waxing Gibbous79% of the Moon is Illuminated
        Oct 26
        Full Moon
        Nov 1
        Waning Half Last Qtr
        Nov 9
        New Moon
        Nov 17
        Waxing Half First Qtr
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