My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        Member Settings
      Elev 387 ft, 38.972 °N 77.390 °W

      Herndon, VA

      Herndon Heights Station67°
      Customize
      Wed 10/07
      71°
      53°
      Sunny
      0
      Thu 10/08
      79°
      48°
      Sunny
      0
      Fri 10/09
      74°
      49°
      Mostly Sunny
      0
      Sat 10/10
      71°
      59°
      Mostly Cloudy
      0.14
      Sun 10/11
      67°
      63°
      Rain
      0.94
      Mon 10/12
      74°
      61°
      Partly Cloudy
      0
      Tue 10/13
      80°
      52°
      Partly Cloudy
      0
      Wed 10/14
      63°
      43°
      Mostly Sunny
      0
      Thu 10/15
      62°
      48°
      Partly Cloudy
      0
      Fri 10/16
      64°
      50°
      Partly Cloudy
      0
              Additional Conditions
              1. Pressure 30 in
              2. Visibility 10 miles
              3. Clouds Clear
              4. Dew Point48°F
              5. Humidity 48%
              6. Rainfall 0 in
              7. Snow Depth 0 in
               KIAD Station History
              Almanac for October 7, 2026
              1. Forecast Average Record
              2. Temperature
              3. High 71°F 71°F 91°F 2007
              4. Low 43°F 49°F 31°F 1988
              5. Rain/Snow Depth
              6. Precipitation 0 in 3.2 in -
              7. Snow 0 in 0 in -
              Almanac for October 8, 2026
              1. Forecast Average Record
              2. Temperature
              3. High 79°F 71°F 92°F
              4. Low 53°F 48°F 30°F
              Astronomy
              1. Sun Rise Set
              2. Actual Time 7:11 AM 6:42 PM
              3. Civil Twilight 6:44 AM 7:09 PM
              4. Nautical Twilight 6:13 AM 7:40PM
              5. Astronomical Twilight 5:42 AM 8:11 PM
              1. Length of Visible Light 12h 24m
              2. Length of Day 11h 31m
              3. Tomorrow will be 2 minutes 29 seconds shorter
              1. Moon 3:51 AM 5:10 PM
              2. Waning Crescent12% of the Moon is Illuminated
              Oct 10
              New Moon
              Oct 18
              Waxing Half First Qtr
              Oct 26
              Full Moon
              Nov 1
              Waning Half Last Qtr
              Nearby Weather Stations
              Station Location
              Temp
              Windchill
              Heat Index
              Dew Point
              Humidity
              Wind
              Precip.
              Elev.
              Updated
              Loading nearby stations…
              Our AppsAbout UsContactCareers
              PWS NetworkWunderMap
              Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
              Level Access
              The Weather Company The Weather Channel Weather Underground Storm Radar
              © The Weather Company, LLC 2026
              Glossary