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      Elev 308 ft, 38.733 °N 77.559 °W

      Bristow, VA

      Wed, Sep 30, 2026
      Tonight
      Tue 09/29
      Low 56°f
      15% Precip. / 0 in
      Partly cloudy skies. Areas of patchy fog. Low 56F. Winds light and variable.
      Tomorrow
      Wed 09/30
      High 81°f
      15% Precip. / 0 in
      Areas of patchy fog early. Sunshine and clouds mixed. High 81F. Winds SSW at 5 to 10 mph.
      Sunrise 7:05 AM
      Sunset 6:54 PM
      Moonrise 9:05 PM
      Moonset 11:41 AM
      Waning Gibbous, 77% visible
      Hourly Forecast
      Now
      59°
      2AM
      15%
      59°
      3AM
      15%
      59°
      4AM
      58°
      5AM
      58°
      6AM
      57°
      7AM
      57°
      7:05AM
      Sunrise
      8AM
      59°
      9AM
      64°
      10AM
      68°
      11AM
      72°
      12PM
      75°
      1PM
      77°
      2PM
      78°
      3PM
      79°
      4PM
      79°
      5PM
      78°
      6PM
      76°
      6:54PM
      Sunset
      7PM
      73°
      8PM
      71°
      9PM
      69°
      10PM
      67°
      11PM
      67°
      12AM
      66°
      1AM
      65°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      2:00 am
      Foggy
      59°F 59°F 15% 0in 96% 56°F 90% 0 mph WSW 30.08in
      3:00 am
      Foggy
      59°F 59°F 15% 0in 94% 56°F 90% 0 mph W 30.07in
      4:00 am
      Cloudy
      58°F 58°F 15% 0in 92% 55°F 92% 0 mph W 30.08in
      5:00 am
      Partly Cloudy
      58°F 58°F 3% 0in 39% 57°F 98% 1 mph W 30.08in
      6:00 am
      Partly Cloudy
      57°F 57°F 15% 0in 40% 57°F 98% 2 mph SW 30.1in
      7:00 am
      Partly Cloudy
      57°F 57°F 15% 0in 59% 56°F 99% 1 mph SW 30.11in
      8:00 am
      Partly Cloudy
      59°F 59°F 3% 0in 44% 58°F 98% 1 mph WSW 30.13in
      9:00 am
      Mostly Sunny
      64°F 64°F 7% 0in 28% 60°F 89% 2 mph WSW 30.14in
      10:00 am
      Sunny
      68°F 69°F 5% 0in 19% 61°F 79% 3 mph SW 30.14in
      11:00 am
      Sunny
      72°F 72°F 2% 0in 14% 62°F 71% 5 mph SW 30.12in
      12:00 pm
      Sunny
      75°F 75°F 1% 0in 13% 61°F 63% 6 mph SSW 30.1in
      1:00 pm
      Mostly Sunny
      77°F 80°F 1% 0in 26% 62°F 59% 6 mph SSW 30.09in
      2:00 pm
      Partly Cloudy
      78°F 81°F 0% 0in 36% 62°F 57% 6 mph SSW 30.07in
      3:00 pm
      Partly Cloudy
      79°F 81°F 0% 0in 40% 62°F 57% 7 mph SSW 30.05in
      4:00 pm
      Partly Cloudy
      79°F 81°F 0% 0in 52% 62°F 56% 7 mph SSW 30.04in
      5:00 pm
      Partly Cloudy
      78°F 81°F 0% 0in 49% 62°F 57% 7 mph SSW 30.04in
      6:00 pm
      Partly Cloudy
      76°F 77°F 1% 0in 43% 63°F 63% 6 mph S 30.05in
      7:00 pm
      Partly Cloudy
      73°F 74°F 2% 0in 51% 62°F 68% 6 mph S 30.05in
      8:00 pm
      Mostly Cloudy
      71°F 71°F 3% 0in 68% 63°F 76% 5 mph SSE 30.06in
      9:00 pm
      Mostly Cloudy
      69°F 70°F 4% 0in 61% 63°F 80% 5 mph SSE 30.07in
      10:00 pm
      Partly Cloudy
      67°F 68°F 5% 0in 55% 62°F 84% 4 mph SSE 30.08in
      11:00 pm
      Mostly Cloudy
      67°F 67°F 6% 0in 79% 62°F 87% 4 mph S 30.08in
      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
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary