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    • Early AM

      Sep 25

      51° Lo
      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
      More
    • Today

      Sep 25

      74° /52°
      Mostly sunny and nice
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Sep 26

      73° /57°F
      Mostly cloudy
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Tue

      Sep 27

      75° /49°
      Mostly sunny
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Wed

      Sep 28

      75° /54°
      Times of clouds and sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    Monday
    1am
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    Forecast Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Cloudy
    Temp (°F) 54° 54° 52° 54° 54° 54° 55° 57°
    RealFeel® 55° 54° 52° 54° 54° 54° 54° 56°
    Wind (mph) 4 E 4 E 4 ESE 4 ESE 5 ESE 5 ESE 5 ESE 6 ESE
    precip
    1am
    2am
    3am
    4am
    5am
    6am
    7am
    8am
    Rain
    1%
    0%
    0%
    0%
    0%
    0%
    3%
    7%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    1am
    2am
    3am
    4am
    5am
    6am
    7am
    8am
    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 26% 26% 26% 26% 26% 34% 45% 90%
    Humidity 92% 94% 97% 92% 91% 90% 91% 87%
    Dew Point 52° 52° 51° 51° 52° 51° 53° 53°
    Temp °F
    1am
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    60° 55° 50°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/26/2015
    High 73° 76° N/A 72°
    Low 57° 55° N/A 55°

    Sunrise/Sunset

    • Sunrise: 7:02 AM
    • Sunset: 6:59 PM
    • Duration: 11:57 hr

    Moonrise/Moonset

    • Moonrise: 2:40 AM
    • Moonset: 4:45 PM
    • Duration: 14:05 hr
    Astronomy

    Frederick 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 >

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps