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    • Early AM

      Dec 15

      30° Lo
      Partly to mostly cloudy
      • 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
      More
    • Today

      Dec 15

      48° /35°F
      Mostly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sat

      Dec 16

      60° /42°
      Sunny and breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Dec 17

      51° /42°
      A bit of morning rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Dec 18

      56° /37°
      Mild with periods of sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    48°Hi RealFeel® 45° Precipitation 0%
    Mostly sunny
    • Winds from the
    • WSW 8 mph
    • Gusts: 13 mph
    • Max UV Index: 2 (Low)
    • 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

    35°Lo RealFeel® 27° Precipitation 1%
    Clear
    • Winds from the
    • SSW 10 mph
    • Gusts: 15 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

    Rockville Pollen Levels Dec 15

    • 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 12/15/2016
    High 48° 42° N/A 28°
    Low 35° 23° N/A 19°

    Sunrise/Sunset

    • Sunrise: 7:25 AM
    • Sunset: 4:58 PM
    • Duration: 9:33 hr

    Moonrise/Moonset

    • Moonrise: 4:50 AM
    • Moonset: 3:37 PM
    • Duration: 10:47 hr
    Astronomy

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps