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    • Today

      Sep 29

      68° /61°F
      Rain and a t-storm; breezy
      • Poor
      • for an outdoor bbq
      • Precip: 85%
      • Hi RealFeel: 70°
      • Wind Speed: 14 mph
    • Fri

      Sep 30

      67° /63°
      Cloudy, showers around; windy
      • Fair
      • for an outdoor bbq
      • Precip: 65%
      • Hi RealFeel: 65°
      • Wind Speed: 16 mph
      More
    • Sat

      Oct 1

      73° /60°
      Mostly cloudy with a shower
      • Very Good
      • for an outdoor bbq
      • Precip: 57%
      • Hi RealFeel: 78°
      • Wind Speed: 5 mph
      More
    • Sun

      Oct 2

      78° /59°
      Mostly cloudy
      • Excellent
      • for an outdoor bbq
      • Precip: 22%
      • Hi RealFeel: 80°
      • Wind Speed: 4 mph
      More
    • Mon

      Oct 3

      75° /57°
      Sunshine and pleasant
      • Excellent
      • for an outdoor bbq
      • Precip: 14%
      • Hi RealFeel: 77°
      • Wind Speed: 5 mph
      More
    Thursday
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    6am
    Forecast Cloudy Rain Cloudy Rain Cloudy Rain Cloudy Cloudy
    Temp (°F) 64° 64° 64° 64° 64° 64° 63° 62°
    RealFeel® 59° 56° 59° 57° 59° 58° 61° 58°
    Wind (mph) 20 ENE 18 ENE 17 ENE 16 ENE 14 ENE 12 NE 9 NE 12 NE
    precip
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    6am
    Rain
    47%
    51%
    43%
    55%
    47%
    55%
    40%
    34%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    6am
    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 100% 99% 99% 99% 99% 99% 100% 99%
    Humidity 96% 96% 95% 93% 94% 96% 96% 97%
    Dew Point 63° 63° 62° 62° 62° 62° 62° 61°
    Temp °F
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    6am
    65° 60°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 68° 70° N/A 79°
    Low 61° 54° N/A 68°

    Sunrise/Sunset

    • Sunrise: 7:03 AM
    • Sunset: 6:53 PM
    • Duration: 11:50 hr

    Moonrise/Moonset

    • Moonrise: 5:38 AM
    • Moonset: 6:25 PM
    • Duration: 12:47 hr
    Astronomy

    Rockville Weather Report

    Persistent rain to raise flood risk in part of northeastern US late this week

    September 29, 2016; 11:16 AM ET

    Persistent downpours will raise the flood risk in part of the mid-Atlantic into Friday, while rain will spread over the balance of the northeastern United States into the weekend. More >

    Thu. Outdoor Entertaining

    Thu. Wind Maps

    Thu. UV Index