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    • Tonight

      Nov 18

      47° Lo F
      Occasional rain and drizzle
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sun

      Nov 19

      53° /32°
      Very windy; partly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Nov 20

      49° /32°
      Clear
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Nov 21

      58° /41°
      Partly cloudy and breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Nov 22

      53° /32°
      Clear to partly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    56°Hi RealFeel® 51° Precipitation 62%
    Occasional rain and drizzle
    • Winds from the
    • SSW 8 mph
    • Gusts: 17 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 0%
    • Precipitation: 0.05 in
    • Rain: 0.05 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 2 hrs
    • Hours of Rain: 2 hrs

    Night

    47°Lo RealFeel® 36° Precipitation 74%
    Increasingly windy with occasional rain and drizzle
    • Winds from the
    • W 18 mph
    • Gusts: 53 mph
    • Max UV Index: N/A
    • Thunderstorms: 3%
    • Precipitation: 0.27 in
    • Rain: 0.27 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 4 hrs
    • Hours of Rain: 4 hrs

    Rockville Pollen Levels Nov 18

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 11/18/2016
    High 56° 54° N/A 72°
    Low 47° 38° N/A 34°

    Sunrise/Sunset

    • Sunrise: 6:55 AM
    • Sunset: 4:52 PM
    • Duration: 9:57 hr

    Moonrise/Moonset

    • Moonrise: 6:48 AM
    • Moonset: 5:25 PM
    • Duration: 10:37 hr
    Astronomy

    Sat. Pollen

    Sat. Dust & Dander

    Sat. Wind Maps