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      Small Craft Advisory
      until 6:00 AM EDT
      Elev 0 ft, 38.706 °N 77.125 °W

      Mount Vernon, VA

      Woodlawn Manor Station71°
      Updated: 3:11 PM EDT on September 21, 2026 (GMT -4)
      37 seconds ago
      76°
      65°
      71
      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
        Mon 09/21
        Low 63°f
         98% Precip. / 0.47 in
        Periods of rain. Low 63F. Winds light and variable. Chance of rain 100%. Rainfall around a half an inch.
        Tomorrow
        Tue 09/22
        High 65°f
         93% Precip. / 0.89 in
        Cloudy with periods of rain. High around 65F. Winds NE at 10 to 15 mph. Chance of rain 90%. Rainfall may reach one inch.
        Tomorrow night
        Tue 09/22
        Low 55°f
         94% Precip. / 0.51 in
        Periods of rain. Low around 55F. Winds NE at 5 to 10 mph. Chance of rain 90%. Rainfall near a half an inch.
        Hourly Forecast
        Now
        73°
        4PM
        56%
        73°
        5PM
        86%
        72°
        6PM
        88%
        70°
        7PM
        44%
        70°
        7:07PM
        Sunset
        8PM
        69°
        9PM
        68°
        10PM
        68°
        11PM
        66°
        12AM
        66°
        1AM
        34%
        66°
        2AM
        56%
        66°
        3AM
        82%
        66°
        4AM
        83%
        66°
        5AM
        97%
        66°
        6AM
        98%
        66°
        6:56AM
        Sunrise
        7AM
        87%
        64°
        8AM
        89%
        64°
        9AM
        72%
        64°
        10AM
        68%
        64°
        11AM
        52%
        64°
        12PM
        76%
        64°
        1PM
        87%
        63°
        2PM
        79%
        63°
        3PM
        76%
        63°
        Precipitation
        98%
        Rain expected around 3:30 PM
        Pollen
        Ragweed Pollen
        High
        Air Quality
        28
        Good
        UV Index
        2
        Low
        Additional Conditions
        1. Pressure 30.02 in
        2. Visibility 9 miles
        3. Clouds Cloudy
        4. Dew Point64°F
        5. Humidity 73%
        6. Rainfall 0.14 in
        7. Snow Depth 0 in
         KDAA Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 76°F 79°F 96°F 1895
        4. Low 65°F 62°F 41°F 1956
        5. Rain/Snow Depth
        6. Precipitation 0.47 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 79°F 98°F
        4. Low 65°F 62°F 39°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:55 AM 7:07 PM
        3. Civil Twilight 6:28 AM 7:33 PM
        4. Nautical Twilight 5:57 AM 8:04PM
        5. Astronomical Twilight 5:26 AM 8:36 PM
        1. Length of Visible Light 13h 4m
        2. Length of Day 12h 11m
        3. Tomorrow will be 2 minutes 30 seconds shorter
        1. Moon 4:40 PM 1:29 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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