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      Elev 0 ft, 38.706 °N 77.125 °W

      Fort Belvoir, VA

      Updated: 1:18 PM EDT on September 21, 2026 (GMT -4)
      2 minutes ago
      75°
      64°
      73
      Feels Like 73
      Cloudy
      N
      5
      Lower temperature is expected today
      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
        Mon 09/21
        High 74°f
        86% Precip. / 0.15 in
        Periods of rain. High 74F. Winds light and variable. Chance of rain 90%.
        Tonight
        Mon 09/21
        Low 63°f
        89% Precip. / 0.19 in
        Cloudy with occasional rain late. Low 63F. Winds light and variable. Chance of rain 90%.
        Tomorrow
        Tue 09/22
        High 66°f55°f
        88% Precip. / 0.72 in
        Cloudy with periods of rain. High 66F. Winds ENE at 10 to 15 mph. Chance of rain 90%. Rainfall near a half an inch.
        Hourly Forecast
        Now
        73°
        2PM
        43%
        73°
        3PM
        73°
        4PM
        74°
        5PM
        86%
        73°
        6PM
        83%
        71°
        7PM
        36%
        70°
        7:07PM
        Sunset
        8PM
        68°
        9PM
        67°
        10PM
        67°
        11PM
        66°
        12AM
        65°
        1AM
        66°
        2AM
        53%
        66°
        3AM
        43%
        66°
        4AM
        69%
        66°
        5AM
        89%
        66°
        6AM
        86%
        66°
        6:56AM
        Sunrise
        7AM
        81%
        65°
        8AM
        79%
        64°
        9AM
        69%
        64°
        10AM
        62%
        64°
        11AM
        56%
        64°
        12PM
        73%
        64°
        1PM
        63%
        64°
        Additional Conditions
        1. Pressure 30.04 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point63°F
        5. Humidity 70%
        6. Rainfall 0.04 in
        7. Snow Depth 0 in
        KDAA Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 75°F 79°F 96°F 1895
        4. Low 64°F 62°F 41°F 1956
        5. Rain/Snow Depth
        6. Precipitation 0.34 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 64°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 29 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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        Weather Alerts
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