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    • Today

      Sep 26

      71° /59°
      Mostly cloudy
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 70°
      • UV: 2 - Low
      • Cloud Cover: 93%
      More
    • Tue

      Sep 27

      73° /53°F
      Clouds giving way to sun
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 77°
      • UV: 4 - Moderate
      • Cloud Cover: 42%
    • Wed

      Sep 28

      72° /60°
      Rain and a thunderstorm
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 71°
      • UV: 2 - Low
      • Cloud Cover: 94%
      More
    • Thu

      Sep 29

      72° /59°
      Rather cloudy, showers around
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 71°
      • UV: 2 - Low
      • Cloud Cover: 94%
      More
    • Fri

      Sep 30

      71° /57°
      Downpours in the morning
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 69°
      • UV: 2 - Low
      • Cloud Cover: 99%
      More
    64°/56° RealFeel® 64°/57°
    Partly cloudy
    • 2 mph
    • Precipitation: 17%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 82%
    • Cloud Cover: 45%
    • Dew Point: 54° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/27/2015
    High 73° 75° 96° (1998) 72°
    Low 53° 51° 35° (1984) 59°

    Sunrise/Sunset

    • Sunrise: 7:02 AM
    • Sunset: 6:57 PM
    • Duration: 11:55 hr

    Moonrise/Moonset

    • Moonrise: 3:41 AM
    • Moonset: 5:21 PM
    • Duration: 13:40 hr
    Astronomy

    Herndon Weather Report

    Rounds of rain to frequent northeastern US this week

    September 26, 2016; 7:29 AM ET

    Bouts of wet weather will frequent the northeastern United States during the last full week of September. More >

    Tue. Migraine Headache

    Tue. UV Index