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      Frost Advisory
      until 9:00 AM EDT
      Elev 276 ft, 38.912 °N 77.509 °W

      South Riding, VA

      South Riding Station66°
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      Sun 10/25
      66°
      37°
      Sunny
      0
      Mon 10/26
      72°
      46°
      Sunny
      0
      Tue 10/27
      71°
      47°
      Mostly Sunny
      0
      Wed 10/28
      67°
      47°
      Cloudy
      0
      Thu 10/29
      73°
      47°
      Partly Cloudy
      0
      Fri 10/30
      79°
      50°
      Mostly Sunny
      0
      Sat 10/31
      77°
      53°
      Partly Cloudy
      0
      Sun 11/01
      76°
      61°
      Cloudy
      0.05
      Mon 11/02
      74°
      56°
      AM Showers
      0.15
      Tue 11/03
      69°
      53°
      Mostly Cloudy
      0
              Additional Conditions
              1. Pressure 30.55 in
              2. Visibility 10 miles
              3. Clouds Mostly Cloudy
              4. Dew Point40°F
              5. Humidity 93%
              6. Rainfall 0 in
              7. Snow Depth 0 in
               KIAD Station History
              Almanac for October 25, 2026
              1. Forecast Average Record
              2. Temperature
              3. High 66°F 65°F 81°F 2023
              4. Low 38°F 42°F 27°F 1969
              5. Rain/Snow Depth
              6. Precipitation 0 in 4.1 in -
              7. Snow 0 in 0 in -
              Almanac for October 26, 2026
              1. Forecast Average Record
              2. Temperature
              3. High 72°F 64°F 84°F
              4. Low 37°F 41°F 26°F
              Astronomy
              1. Sun Rise Set
              2. Actual Time 7:29 AM 6:17 PM
              3. Civil Twilight 7:02 AM 6:45 PM
              4. Nautical Twilight 6:31 AM 7:16PM
              5. Astronomical Twilight 6:00 AM 7:47 PM
              1. Length of Visible Light 11h 42m
              2. Length of Day 10h 47m
              3. Tomorrow will be 2 minutes 19 seconds shorter
              1. Moon 5:43 PM 6:52 AM
              2. Waxing Gibbous99% 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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