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      Elev 262 ft, 39.037 °N 77.488 °W

      Ashburn, VA

      Ashburn Station77°
      Updated: 12:20 AM EDT on September 10, 2026 (GMT -4)
      6 minutes ago
      76°
      68°
      77
      Feels Like 78
      Clear
      N
      10
      Gusts 20 mph
      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
        Tonight
        Wed 09/09
        Low 72°f
         24% Precip. / 0 in
        A few clouds. Low 72F. Winds SW at 5 to 10 mph.
        Tomorrow
        Thu 09/10
        High 88°f
         17% Precip. / 0 in
        Cloudy skies early will become partly cloudy later in the day. A stray shower or thunderstorm is possible. High 88F. Winds W at 5 to 10 mph.
        Tomorrow night
        Thu 09/10
        Low 67°f
         77% Precip. / 0.63 in
        Thunderstorms in the evening, then cloudy with rain likely overnight. Low 67F. Winds light and variable. Chance of rain 80%.
        Hourly Forecast
        Now
        77°
        1AM
        77°
        2AM
        76°
        3AM
        75°
        4AM
        74°
        5AM
        73°
        6AM
        73°
        6:46AM
        Sunrise
        7AM
        73°
        8AM
        74°
        9AM
        75°
        10AM
        77°
        11AM
        80°
        12PM
        83°
        1PM
        84°
        2PM
        85°
        3PM
        86°
        4PM
        86°
        5PM
        85°
        6PM
        84°
        7PM
        82°
        7:26PM
        Sunset
        8PM
        80°
        9PM
        79°
        10PM
        77°
        11PM
        58%
        75°
        12AM
        75%
        74°
        Precipitation
        75%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        43
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.98 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point64°F
        5. Humidity 63%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KJYO Station History
        Almanac for September 10, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 76°F 81°F 99°F 2016
        4. Low 68°F 60°F 41°F 1981
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 11, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 89°F 81°F 99°F
        4. Low 68°F 60°F 41°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:46 AM 7:26 PM
        3. Civil Twilight 6:19 AM 7:53 PM
        4. Nautical Twilight 5:48 AM 8:24PM
        5. Astronomical Twilight 5:15 AM 8:57 PM
        1. Length of Visible Light 13h 33m
        2. Length of Day 12h 39m
        3. Tomorrow will be 2 minutes 30 seconds shorter
        1. Moon 6:07 AM 7:09 PM
        2. New0% of the Moon is Illuminated
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Precipitation
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