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    • Early AM

      Sep 27

      60° Lo
      Periods of rain and a thunderstorm
      • 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
      More
    • Today

      Sep 27

      74° /53°F
      Clouds giving way to sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Wed

      Sep 28

      73° /60°
      A bit of afternoon rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      72° /59°
      Mostly cloudy, showers around
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Fri

      Sep 30

      72° /54°
      Heavy showers in the morning
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Tuesday
    4pm
    5pm
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    Forecast Mostly Sunny Mostly Sunny Mostly Sunny Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
    Temp (°F) 74° 73° 71° 68° 64° 61° 60° 59°
    RealFeel® 76° 73° 70° 66° 64° 62° 61° 60°
    Wind (mph) 5 S 5 S 5 S 4 SSE 4 SSE 2 SSE 2 SSE 2 S
    precip
    4pm
    5pm
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    Rain
    2%
    2%
    2%
    3%
    4%
    4%
    4%
    4%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    4pm
    5pm
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    UV Index 2 1 0 0 0 0 0 0
    Cloud Cover 25% 25% 25% 25% 45% 43% 45% 45%
    Humidity 47% 48% 53% 64% 72% 76% 84% 87%
    Dew Point 52° 52° 53° 55° 55° 54° 55° 55°
    Temp °F
    4pm
    5pm
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    75° 70° 65° 60° 55°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/27/2015
    High 74° 71° N/A 72°
    Low 53° 55° N/A 57°

    Sunrise/Sunset

    • Sunrise: 7:01 AM
    • Sunset: 6:58 PM
    • Duration: 11:57 hr

    Moonrise/Moonset

    • Moonrise: 2:40 AM
    • Moonset: 4:43 PM
    • Duration: 14:03 hr
    Astronomy

    Gaithersburg Weather Report

    Rounds of rain to frequent northeastern US this week

    September 26, 2016; 11:30 PM ET

    Bouts of wet weather will soak the northeastern United States during the last full week of September. More >

    Tue. Pollen

    Tue. Dust & Dander

    Tue. Wind Maps