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    Next 5 Days
    • Tonight

      Sep 25

      37° Lo F
      Mainly clear and chilly
    • Mon

      Sep 26

      66° /54°
      Sunny to partly cloudy
      More
    • Tue

      Sep 27

      70° /51°
      Periods of rain
      More
    • Wed

      Sep 28

      69° /56°
      Times of clouds and sun
      More
    • Thu

      Sep 29

      63° /56°
      A shower possible
      More
    Sunday
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    Forecast Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear
    Temp (°F) 48° 46° 45° 43° 41° 40° 39° 37°
    RealFeel® 47° 46° 45° 44° 42° 41° 40° 38°
    Wind (mph) 5 NW 4 NW 4 NW 4 NW 4 NW 4 NW 4 NW 4 NW
    precip
    11pm
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    Rain
    1%
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    Snow
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    Ice
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    SKY
    11pm
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    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 18% 11% 11% 11% 11% 11% 11% 11%
    Humidity 66% 68% 75% 78% 76% 75% 78% 86%
    Dew Point 37° 36° 38° 37° 34° 32° 33° 33°
    Temp °F
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    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2015
    High 64° 69° N/A 68°
    Low 37° 47° N/A 43°

    Sunrise/Sunset

    • Sunrise: 6:36 AM
    • Sunset: 6:35 PM
    • Duration: 11:59 hr

    Moonrise/Moonset

    • Moonrise: 1:07 AM
    • Moonset: 3:44 PM
    • Duration: 14:37 hr
    Astronomy

    Arlington Weather Report

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

    September 25, 2016; 9:29 PM 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 to end this weekend. More >