, °F

Personalized Forecasts

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    • Early AM

      Dec 9

      28° Lo
      Partly cloudy
      • Stargazing
      • Weather
      • Cloud Cover: 33%
      • Precip: 1%
      • Hours of Precip: 2
      More
    • Today

      Dec 9

      41° /25°F
      Mostly sunny, windy and cold
      • Very Good
      • for stargazing
      • Cloud Cover: 6%
      • Precip: 4%
      • Hours of Precip: 0
    • Sat

      Dec 10

      39° /22°
      Cold with plenty of sun
      • Fair
      • for stargazing
      • Cloud Cover: 54%
      • Precip: 2%
      • Hours of Precip: 0
      More
    • Sun

      Dec 11

      41° /34°
      Some sun, then clouds; chilly
      • Poor
      • for stargazing
      • Cloud Cover: 97%
      • Precip: 68%
      • Hours of Precip: 2.5
      More
    • Mon

      Dec 12

      57° /36°
      A little morning rain; warmer
      • Poor
      • for stargazing
      • Cloud Cover: 65%
      • Precip: 16%
      • Hours of Precip: 2
      More
    Friday
    4am
    5am
    6am
    7am
    8am
    9am
    10am
    11am
    Forecast Mostly Clear Mostly Clear Mostly Clear Clear Sunny Sunny Sunny Sunny
    Temp (°F) 30° 29° 28° 30° 31° 33° 36° 38°
    RealFeel® 21° 20° 19° 20° 20° 20° 22° 25°
    Wind (mph) 10 WNW 9 WNW 9 WNW 10 WNW 12 WNW 16 WNW 20 WNW 21 WNW
    precip
    4am
    5am
    6am
    7am
    8am
    9am
    10am
    11am
    Rain
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    4am
    5am
    6am
    7am
    8am
    9am
    10am
    11am
    UV Index 0 0 0 0 0 1 1 2
    Cloud Cover 23% 26% 26% 0% 0% 0% 0% 3%
    Humidity 63% 60% 59% 62% 59% 52% 48% 46%
    Dew Point 19° 17° 16° 18° 18° 17° 18° 19°
    Temp °F
    4am
    5am
    6am
    7am
    8am
    9am
    10am
    11am
    40° 35° 30° 25°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 12/9/2015
    High 41° 52° N/A 55°
    Low 25° 34° N/A 32°

    Sunrise/Sunset

    • Sunrise: 7:10 AM
    • Sunset: 4:42 PM
    • Duration: 9:32 hr

    Moonrise/Moonset

    • Moonrise: 1:50 PM
    • Moonset: 2:53 AM
    • Duration: 13:03 hr
    Astronomy

    Solunar Information for Vienna, MD

    Wed, Dec 14
    Full
    Wed, Dec 21
    Last
    Thu, Dec 29
    New
    Thu, Jan 5
    First

    Fri. Stargazing