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    • Tonight

      Sep 24

      50° 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

      74° /51°
      Mostly sunny and nice
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Sep 26

      74° /61°
      Mostly cloudy
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Tue

      Sep 27

      74° /48°
      Clouds giving way to some sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Wed

      Sep 28

      75° /54°
      Partly sunny and beautiful
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    64°/55° RealFeel® 67°/55°
    Colder
    • 2 mph
    • Precipitation: 7%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 90%
    • Cloud Cover: 6%
    • Dew Point: 56° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/24/2015
    High 75° 77° N/A 79°
    Low 50° 56° N/A 46°

    Sunrise/Sunset

    • Sunrise: 7:00 AM
    • Sunset: 7:02 PM
    • Duration: 12:02 hr

    Moonrise/Moonset

    • Moonrise: 12:42 AM
    • Moonset: 3:17 PM
    • Duration: 14:35 hr
    Astronomy

    Frederick 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

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