• Today

    Aug 20

    88°Lo 65°

    A p.m. t-storm in spots

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Thu

    Aug 21

    87°Lo 66°

    Couple of showers, t-storms

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Aug 22

    83°Lo 66°

    Couple of thunderstorms

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Sat

    Aug 23

    77°Lo 63°

    Cooler with a shower or two

    Low ragweed pollen levels
    • Precip
      61%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      70%
    more
  • Sun

    Aug 24

    77°Lo 61°

    More clouds than sun

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      88%
    more
Next Previous
Mostly cloudy 73° RealFeel® 88°

N

E

S

W

  • Humidity: 100%
  • Pressure: 29.99 in
  • UV Index: 1
  • Cloud Cover: 75%
  • Ceiling: 12100 ft
  • Dew Point: 73° F
  • Visibility: 10 mi
0 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:27 AM with 13:32 of sunlight, then sets at 7:59 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:06 AM with 14:35 of moolight, then sets at 4:41 PM

Temperature Summary - 5:59 PM

  Temp (°F)
Now 73°
Yesterday 64°
RealFeel® 88°
RealFeel® Shade 84°
Wind Chill 73°
Dew Point 73°
  Hi / Lo
Previous 6 Hours 88°
  73°
Previous 12 Hours 88°
  68°
Previous 24 Hours 88°
  68°

Temperature History - Aug 20

more Historical Weather Data >
  Today Normal Record 8/20/2013
High 88° 86° N/A 84°
Low 65° 66° N/A 59°

Precipitation Summary - 5:59 PM

  Amount (in)
Previous 1 Hour 0
Previous 3 Hours 0.09
Previous 6 Hours 0.11
Previous 9 Hours 0.11
Previous 12 Hours 0.11
Previous 18 Hours 0.11
Previous 24 Hours 0.11
Top Story

Frederick Weather Report

DC: Downpour, Flooding Risk to Increase

August 20, 2014; 12:00 PM ET

A wedge of dry air will slowly erode at midweek and will allow drenching showers and thunderstorms to survive the trip into Washington, D.C., from the Midwest. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps