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    • Today

      Sep 29

      69° /62°
      Heavy rain and a thunderstorm
      • Poor
      • at the bus stop
      • T-storms: 60%
      • Precip: 85%
      • Wind Gust: 31 mph
      More
    • Fri

      Sep 30

      66° /63°F
      Cloudy with showers around
      • Very Good
      • at the bus stop
      • T-storms: 20%
      • Precip: 73%
      • Wind Gust: 32 mph
    • Sat

      Oct 1

      73° /60°
      Warmer with a passing shower
      • Very Good
      • at the bus stop
      • T-storms: 27%
      • Precip: 55%
      • Wind Gust: 9 mph
      More
    • Sun

      Oct 2

      78° /59°
      A couple of afternoon showers
      • Excellent
      • at the bus stop
      • T-storms: 20%
      • Precip: 63%
      • Wind Gust: 7 mph
      More
    • Mon

      Oct 3

      75° /57°
      Sun and some clouds
      • Excellent
      • at the bus stop
      • T-storms: 2%
      • Precip: 25%
      • Wind Gust: 8 mph
      More
    Friday
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    Forecast Showers Cloudy Cloudy Showers Cloudy Showers Cloudy Cloudy
    Temp (°F) 63° 63° 64° 65° 65° 65° 66° 66°
    RealFeel® 55° 59° 60° 59° 63° 60° 64° 65°
    Wind (mph) 15 ENE 15 ENE 18 NE 17 NE 21 NE 23 NE 18 NE 16 NE
    precip
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    Rain
    64%
    49%
    48%
    52%
    44%
    51%
    47%
    44%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    UV Index 0 1 1 1 1 1 1 1
    Cloud Cover 99% 99% 100% 100% 100% 100% 99% 99%
    Humidity 98% 99% 100% 100% 100% 100% 100% 100%
    Dew Point 62° 63° 64° 65° 65° 65° 66° 66°
    Temp °F
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    70° 65° 60°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 66° 70° N/A 72°
    Low 63° 54° N/A 57°

    Sunrise/Sunset

    • Sunrise: 7:04 AM
    • Sunset: 6:52 PM
    • Duration: 11:48 hr

    Moonrise/Moonset

    • Moonrise: 6:35 AM
    • Moonset: 6:56 PM
    • Duration: 12:21 hr
    Astronomy

    Rockville Weather Report

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

    September 29, 2016; 4:55 AM ET

    Rain will spread over much of the northeastern U.S. into the weekend, but persistent downpours will raise the flood risk in part of the mid-Atlantic. More >

    Fri. Morning Bus Stop

    Fri. UV Index

    Fri. Wind Maps