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Personalized Forecasts

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    My Recent Locations

    • Thu

      Sep 29

      71° /53°
      A couple of showers possible
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Fri

      Sep 30

      72° /50°
      A couple of showers possible
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 74°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Sat

      Oct 1

      72° /53°
      Some sun
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Sun

      Oct 2

      76° /56°F
      Times of clouds and sun
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 75°
      • UV: 4 - Moderate
      • Air Qual.: Good
    • Mon

      Oct 3

      81° /56°
      Sunny
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 81°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More

    Day

    76°Hi RealFeel® 75° Precipitation 1%
    Periods of clouds and sunshine
    • NNE 8 mph
    • Gusts: 21 mph
    • Max UV Index: 4 (Moderate)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    56°Lo RealFeel® 54° Precipitation 1%
    Partly cloudy
    • N 6 mph
    • Gusts: 13 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/2/2015
    High 76° 69° N/A 55°
    Low 56° 53° N/A 46°

    Sunrise/Sunset

    • Sunrise: 7:06 AM
    • Sunset: 6:48 PM
    • Duration: 11:42 hr

    Moonrise/Moonset

    • Moonrise: 8:28 AM
    • Moonset: 7:57 PM
    • Duration: 11:29 hr
    Astronomy

    Rockville Weather Report

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

    September 25, 2016; 1:09 AM 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 this weekend. More >