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    • Tonight

      May 20

      63° Lo
      Mainly cloudy; mild
      • Stargazing
      • Weather
      • Cloud Cover: 90%
      • Precip: 25%
      • Hours of Precip: 0.5
      More
    • Mon

      May 21

      78° /63°F
      Rather cloudy
      • Poor
      • for stargazing
      • Cloud Cover: 94%
      • Precip: 40%
      • Hours of Precip: 0.5
    • Tue

      May 22

      78° /63°
      Mostly cloudy, a thunderstorm
      • Poor
      • for stargazing
      • Cloud Cover: 75%
      • Precip: 25%
      • Hours of Precip: 2
      More
    • Wed

      May 23

      80° /60°
      Partly sunny
      • Excellent
      • for stargazing
      • Cloud Cover: 7%
      • Precip: 5%
      • Hours of Precip: 0
      More
    • Thu

      May 24

      81° /58°
      Sunshine
      • Very Good
      • for stargazing
      • Cloud Cover: 10%
      • Precip: 6%
      • Hours of Precip: 0
      More

    Day

    78°Hi RealFeel® 80° Precipitation 24%
    Rather cloudy
    • Winds from the
    • E 6 mph
    • Gusts: 8 mph
    • Max UV Index: 4 (Moderate)
    • Thunderstorms: 21%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    63°Lo RealFeel® 60° Precipitation 40%
    Rather cloudy, mild; a shower or thunderstorm in spots late
    • Winds from the
    • SSE 6 mph
    • Gusts: 8 mph
    • Max UV Index: N/A
    • Thunderstorms: 40%
    • Precipitation: 0.04 in
    • Rain: 0.04 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0.5 hrs
    • Hours of Rain: 0.5 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 5/21/2017
    High 78° 76° 92° (1996) 67°
    Low 63° 53° 33° (1992) 57°

    Sunrise/Sunset

    • Sunrise: 5:52 AM
    • Sunset: 8:20 PM
    • Duration: 14:28 hr

    Moonrise/Moonset

    • Moonrise: 12:12 PM
    • Moonset: 2:11 AM
    • Duration: 13:59 hr
    Astronomy

    Solunar Information for Fairfax, VA

    Tue, May 22
    First
    Tue, May 29
    Full
    Wed, Jun 6
    Last
    Wed, Jun 13
    New

    Mon. Stargazing