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    • Tonight

      Sep 27

      54° Lo
      Partly cloudy
      • 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
    • Wed

      Sep 28

      73° /65°
      Mostly cloudy, afternoon rain
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      71° /65°F
      Heavy rain; breezy, humid
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Fri

      Sep 30

      72° /63°
      Cloudy with a few showers
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sat

      Oct 1

      78° /58°
      Mostly cloudy, showers around
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    71°Hi RealFeel® 68° Precipitation 77%
    Breezy and humid with rain, some heavy; watch for flooding on streets and poor drainage areas
    • ESE 17 mph
    • Gusts: 29 mph
    • Max UV Index: 2 (Low)
    • Thunderstorms: 24%
    • Precipitation: 1.24 in
    • Rain: 1.24 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 8 hrs
    • Hours of Rain: 8 hrs

    Night

    65°Lo RealFeel® 60° Precipitation 66%
    Mild with periods of rain
    • E 9 mph
    • Gusts: 14 mph
    • Max UV Index: N/A
    • Thunderstorms: 24%
    • Precipitation: 0.3 in
    • Rain: 0.3 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3.5 hrs
    • Hours of Rain: 3.5 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 71° 75° N/A 81°
    Low 65° 54° N/A 66°

    Sunrise/Sunset

    • Sunrise: 7:05 AM
    • Sunset: 6:54 PM
    • Duration: 11:49 hr

    Moonrise/Moonset

    • Moonrise: 5:39 AM
    • Moonset: 6:26 PM
    • Duration: 12:47 hr
    Astronomy

    Frederick Weather Report

    Rain to soak northeastern US during final days of September

    September 27, 2016; 8:45 PM ET

    Periods of rain will drench portions of the northeastern United States from midweek through Friday. More >

    Thu. Dust & Dander

    Thu. Wind Maps