, °F

Personalized Forecasts

Featured Forecast

My Favorite Forecasts

    My Recent Locations

    • Tonight

      Sep 24

      52° Lo F
      Mainly clear and cooler
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Sun

      Sep 25

      72° /53°
      Mostly sunny and pleasant
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Sep 26

      72° /62°
      Increasing cloudiness
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Tue

      Sep 27

      71° /51°
      Clouds giving way to some sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Wed

      Sep 28

      73° /55°
      Nice with clouds and sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Saturday
    10pm
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    Forecast Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear
    Temp (°F) 63° 61° 59° 58° 57° 55° 55° 54°
    RealFeel® 63° 61° 60° 58° 57° 56° 54° 53°
    Wind (mph) 4 NE 4 NNE 4 NNE 4 N 4 N 4 N 5 N 5 N
    precip
    10pm
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    Rain
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    10pm
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 25% 25% 25% 25% 25% 25% 25% 25%
    Humidity 78% 78% 78% 80% 79% 77% 77% 79%
    Dew Point 56° 54° 52° 52° 51° 48° 48° 47°
    Temp °F
    10pm
    11pm
    12am
    1am
    2am
    3am
    4am
    5am
    65° 60° 55° 50°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/24/2015
    High 73° 72° N/A 77°
    Low 52° 56° N/A 50°

    Sunrise/Sunset

    • Sunrise: 6:59 AM
    • Sunset: 7:01 PM
    • Duration: 12:02 hr

    Moonrise/Moonset

    • Moonrise: 12:41 AM
    • Moonset: 3:15 PM
    • Duration: 14:34 hr
    Astronomy

    Rockville Weather Report

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

    September 24, 2016; 9:32 PM 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 >

    Sat. Pollen

    Sat. Dust & Dander

    Sat. Wind Maps