, °F

Personalized Forecasts

Featured Forecast

My Favorite Forecasts

    My Recent Locations

    • Today

      Sep 25

      72° /56°F
      Mostly sunny and pleasant
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 77°
      • UV: 4 - Moderate
      • Cloud Cover: 21%
    • Mon

      Sep 26

      71° /61°
      Increasing cloudiness
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 71°
      • UV: 4 - Moderate
      • Cloud Cover: 59%
      More
    • Tue

      Sep 27

      73° /53°
      Mostly sunny
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 77°
      • UV: 4 - Moderate
      • Cloud Cover: 23%
      More
    • Wed

      Sep 28

      72° /58°
      Chance of a little p.m. rain
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 74°
      • UV: 4 - Moderate
      • Cloud Cover: 76%
      More
    • Thu

      Sep 29

      72° /57°
      A couple of showers possible
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Cloud Cover: 69%
      More

    Day

    72°Hi RealFeel® 77° Precipitation 6%
    Mostly sunny and pleasant
    • E 4 mph
    • Gusts: 7 mph
    • Max UV Index: 5 (Moderate)
    • Thunderstorms: 2%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    56°Lo RealFeel® 56° Precipitation 14%
    Clouds breaking
    • SE 4 mph
    • Gusts: 6 mph
    • Max UV Index: N/A
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2015
    High 72° 76° 93° (2010) 71°
    Low 56° 52° 33° (1983) 57°

    Sunrise/Sunset

    • Sunrise: 7:00 AM
    • Sunset: 7:00 PM
    • Duration: 12:00 hr

    Moonrise/Moonset

    • Moonrise: 1:41 AM
    • Moonset: 4:02 PM
    • Duration: 14:21 hr
    Astronomy

    Fairfax Weather Report

    Crisp fall air to bring first frost of season to parts of northeastern US

    September 25, 2016; 5:09 AM ET

    Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region this weekend. More >

    Sun. Migraine Headache

    Sun. UV Index