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      Elev 371 ft, 38.932 °N 77.402 °W

      Herndon, VA

      Sun, Oct 4, 2026
      Tomorrow
      Sun 10/04
      High 64°f56°f
      49% Precip. / 0.03 in
      Rain showers early with overcast skies later in the day. High 64F. Winds light and variable. Chance of rain 50%.
      Tomorrow night
      Sun 10/04
      Low 56°f
      20% Precip. / 0 in
      Mostly cloudy. Areas of patchy fog developing. Low 56F. Winds light and variable.
      Sunrise 7:08 AM
      Sunset 6:47 PM
      Moonrise 12:13 AM
      Moonset 3:38 PM
      Waning Crescent, 43% visible
      Hourly Forecast
      12AM
      60°
      1AM
      60°
      2AM
      60°
      3AM
      35%
      60°
      4AM
      60°
      5AM
      35%
      60°
      6AM
      34%
      60°
      7AM
      38%
      60°
      7:08AM
      Sunrise
      8AM
      36%
      60°
      9AM
      49%
      61°
      10AM
      32%
      62°
      11AM
      32%
      62°
      12PM
      39%
      62°
      1PM
      62°
      2PM
      62°
      3PM
      63°
      4PM
      64°
      5PM
      64°
      6PM
      64°
      6:47PM
      Sunset
      7PM
      64°
      8PM
      63°
      9PM
      62°
      10PM
      62°
      11PM
      62°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Cloudy
      60°F 60°F 24% 0in 98% 58°F 93% 1 mph E 30.23in
      1:00 am
      Cloudy
      60°F 60°F 24% 0in 98% 58°F 93% 1 mph ENE 30.22in
      2:00 am
      Cloudy
      60°F 60°F 24% 0in 99% 58°F 92% 2 mph ENE 30.22in
      3:00 am
      Showers
      60°F 60°F 35% 0.01in 99% 58°F 93% 3 mph ENE 30.21in
      4:00 am
      Cloudy
      60°F 60°F 24% 0in 98% 58°F 93% 4 mph ENE 30.19in
      5:00 am
      Showers
      60°F 60°F 35% 0in 97% 58°F 93% 3 mph NE 30.18in
      6:00 am
      Few Showers
      60°F 60°F 34% 0in 97% 58°F 94% 3 mph ENE 30.18in
      7:00 am
      Showers
      60°F 60°F 38% 0.01in 99% 58°F 94% 3 mph ENE 30.18in
      8:00 am
      Showers
      60°F 60°F 36% 0in 99% 59°F 94% 4 mph ENE 30.18in
      9:00 am
      Showers
      61°F 61°F 49% 0.01in 99% 59°F 92% 4 mph ENE 30.18in
      10:00 am
      Few Showers
      62°F 62°F 32% 0in 99% 59°F 91% 5 mph ENE 30.17in
      11:00 am
      Few Showers
      62°F 62°F 32% 0in 100% 60°F 93% 5 mph ENE 30.16in
      12:00 pm
      Showers
      62°F 62°F 39% 0.01in 100% 60°F 95% 4 mph NE 30.15in
      1:00 pm
      Cloudy
      62°F 62°F 24% 0in 99% 61°F 96% 3 mph ENE 30.13in
      2:00 pm
      Cloudy
      62°F 62°F 19% 0in 100% 61°F 97% 3 mph NE 30.11in
      3:00 pm
      Cloudy
      63°F 63°F 17% 0in 100% 62°F 96% 4 mph NNE 30.09in
      4:00 pm
      Cloudy
      64°F 64°F 17% 0in 98% 62°F 94% 4 mph NNE 30.07in
      5:00 pm
      Cloudy
      64°F 64°F 22% 0in 99% 62°F 94% 3 mph NNE 30.07in
      6:00 pm
      Cloudy
      64°F 64°F 15% 0in 97% 62°F 93% 3 mph NNE 30.06in
      7:00 pm
      Cloudy
      64°F 64°F 15% 0in 98% 62°F 94% 3 mph N 30.06in
      8:00 pm
      Cloudy
      63°F 63°F 10% 0in 84% 62°F 98% 2 mph N 30.07in
      9:00 pm
      Cloudy
      62°F 62°F 9% 0in 85% 62°F 100% 2 mph N 30.07in
      10:00 pm
      Cloudy
      62°F 62°F 9% 0in 94% 62°F 100% 2 mph NNW 30.07in
      11:00 pm
      Cloudy
      62°F 62°F 21% 0in 91% 62°F 100% 2 mph NNW 30.06in
      Additional Conditions
      1. Pressure 30.24 in
      2. Visibility 7 miles
      3. Clouds Cloudy
      4. Dew Point52°F
      5. Humidity 78%
      6. Rainfall 0.56 in
      7. Snow Depth 0 in
      KIAD Station History
      Almanac for October 3, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 69°F 73°F 86°F 2018
      4. Low 56°F 51°F 30°F 2003
      5. Rain/Snow Depth
      6. Precipitation 0.02 in 3 in -
      7. Snow 0 in 0 in -
      Almanac for October 4, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 64°F 72°F 90°F
      4. Low 59°F 50°F 26°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 7:07 AM 6:49 PM
      3. Civil Twilight 6:40 AM 7:15 PM
      4. Nautical Twilight 6:09 AM 7:46PM
      5. Astronomical Twilight 5:38 AM 8:17 PM
      1. Length of Visible Light 12h 34m
      2. Length of Day 11h 41m
      3. Tomorrow will be 2 minutes 29 seconds shorter
      1. Moon - 2:53 PM
      2. Last Quarter54% 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