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      Elev 308 ft, 38.733 °N 77.559 °W

      Bristow, VA

      Avendale Station59°
      Customize
      Wed 09/30
      81°
      60°
      Partly Cloudy
      0
      Thu 10/01
      87°
      60°
      Partly Cloudy
      0
      Fri 10/02
      89°
      60°
      PM Showers
      0.12
      Sat 10/03
      68°
      57°
      Mostly Cloudy
      0.05
      Sun 10/04
      66°
      54°
      Showers
      0.12
      Mon 10/05
      70°
      44°
      Mostly Sunny
      0
      Tue 10/06
      62°
      39°
      Sunny
      0
      Wed 10/07
      66°
      46°
      Sunny
      0
      Thu 10/08
      72°
      51°
      Partly Cloudy
      0
      Fri 10/09
      70°
      48°
      Partly Cloudy
      0
              Additional Conditions
              1. Pressure 30.08 in
              2. Visibility 0.75 miles
              3. Clouds Cloudy
              4. Dew Point55°F
              5. Humidity 88%
              6. Rainfall 0 in
              7. Snow Depth 0 in
               KHEF Station History
              Almanac for September 30, 2026
              1. Forecast Average Record
              2. Temperature
              3. High 80°F 76°F 91°F 1954
              4. Low 56°F 50°F 33°F 1951
              5. Rain/Snow Depth
              6. Precipitation 0 in 0.1 in -
              7. Snow 0 in - in -
              Almanac for October 1, 2026
              1. Forecast Average Record
              2. Temperature
              3. High 87°F 76°F 90°F
              4. Low 60°F 49°F 34°F
              Astronomy
              1. Sun Rise Set
              2. Actual Time 7:05 AM 6:54 PM
              3. Civil Twilight 6:38 AM 7:20 PM
              4. Nautical Twilight 6:07 AM 7:51PM
              5. Astronomical Twilight 5:36 AM 8:22 PM
              1. Length of Visible Light 12h 42m
              2. Length of Day 11h 49m
              3. Tomorrow will be 2 minutes 30 seconds shorter
              1. Moon 9:05 PM 11:41 AM
              2. Waning Gibbous77% of the Moon is Illuminated
              Oct 3
              Waning Half Last Qtr
              Oct 10
              New Moon
              Oct 18
              Waxing Half First Qtr
              Oct 26
              Full Moon
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