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      Elev 124 ft, 38.900 °N 77.274 °W

      Vienna, VA

      Vienna Station
      Updated: 3:00 AM EDT on August 21, 2026 (GMT -4)
      9 minutes ago
      88°
      65°
      64
      Feels Like 64
      Partly Cloudy
      N
      4
      Lower temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Thu 08/20
      Low 62°f
      3% Precip. / 0 in
      Partly cloudy. Low 62F. Winds light and variable.
      Tomorrow
      Fri 08/21
      High 82°f
      15% Precip. / 0 in
      Except for a few afternoon clouds, mainly sunny. A stray shower or thunderstorm is possible. High 82F. Winds light and variable.
      Tomorrow night
      Fri 08/21
      Low 67°f
      68% Precip. / 0.17 in
      Partly cloudy skies early will give way to showers and a possible thunderstorm later in the night. Low 67F. Winds light and variable. Chance of rain 70%.
      Hourly Forecast
      Now
      65°
      4AM
      64°
      5AM
      64°
      6AM
      63°
      6:27AM
      Sunrise
      7AM
      63°
      8AM
      65°
      9AM
      68°
      10AM
      71°
      11AM
      73°
      12PM
      76°
      1PM
      77°
      2PM
      79°
      3PM
      81°
      4PM
      81°
      5PM
      80°
      6PM
      79°
      7PM
      78°
      7:55PM
      Sunset
      8PM
      74°
      9PM
      72°
      10PM
      71°
      11PM
      70°
      12AM
      69°
      1AM
      69°
      2AM
      44%
      69°
      3AM
      50%
      68°
      Precipitation
      50%
      Pollen
      Grass Pollen
      Low
      Air Quality
      32
      Good
      UV Index
      0
      Low
      Additional Conditions
      1. Pressure 30.04 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point62°F
      5. Humidity 89%
      6. Rainfall 0.43 in
      7. Snow Depth 0 in
       KIAD Station History
      Almanac for August 21, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 88°F 86°F 102°F 1983
      4. Low 65°F 66°F 50°F 1981
      5. Rain/Snow Depth
      6. Precipitation 0 in 4 in -
      7. Snow 0 in 0 in -
      Almanac for August 22, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 81°F 86°F 98°F
      4. Low 65°F 66°F 49°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:28 AM 7:55 PM
      3. Civil Twilight 6:00 AM 8:23 PM
      4. Nautical Twilight 5:26 AM 8:57PM
      5. Astronomical Twilight 4:50 AM 9:32 PM
      1. Length of Visible Light 14h 23m
      2. Length of Day 13h 27m
      3. Tomorrow will be 2 minutes 20 seconds shorter
      1. Moon 3:54 PM 12:02 AM
      2. Waxing Gibbous66% of the Moon is Illuminated
      Aug 28
      Full Moon
      Sep 4
      Waning Half Last Qtr
      Sep 10
      New Moon
      Sep 18
      Waxing Half First Qtr
      Precipitation
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