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    • Today

      May 25

      72° /55°F
      Heavy thunderstorms
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
    • Fri

      May 26

      77° /56°
      Variable clouds with a shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Sat

      May 27

      79° /62°
      A couple of afternoon showers
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Sun

      May 28

      77° /63°
      Thundershower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      May 29

      81° /60°
      Partly sunny, a shower; humid
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More

    Day

    72°Hi RealFeel® 76° Precipitation 65%
    A couple of showers and a thunderstorm around, some may be heavy later; cloudy
    • N 4 mph
    • Gusts: 12 mph
    • Max UV Index: 2 (Low)
    • Thunderstorms: 60%
    • Precipitation: 0.23 in
    • Rain: 0.23 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3 hrs
    • Hours of Rain: 3 hrs

    Night

    55°Lo RealFeel® 53° Precipitation 55%
    Mostly cloudy with a shower or thunderstorm around
    • W 6 mph
    • Gusts: 8 mph
    • Max UV Index: N/A
    • Thunderstorms: 40%
    • Precipitation: 0.1 in
    • Rain: 0.1 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1.5 hrs
    • Hours of Rain: 1.5 hrs

    Frederick Pollen Levels May 25

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      High

    Temperature History

    more Historical Weather Data >
      Today Normal Record 5/25/2016
    High 72° 79° N/A 84°
    Low 55° 57° N/A 52°

    Sunrise/Sunset

    • Sunrise: 5:49 AM
    • Sunset: 8:25 PM
    • Duration: 14:36 hr

    Moonrise/Moonset

    • Moonrise: 5:57 AM
    • Moonset: 8:18 PM
    • Duration: 14:21 hr
    Astronomy

    Thu. Pollen

    Thu. Dust & Dander

    Thu. Wind Maps