• Tonight

    Aug 20

    Lo 65°

    A thunderstorm this evening

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • 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%
  • 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
Hi 77° RealFeel® 81° Precipitation 61%

Day

N

E

S

W

  • ESE 4 mph
  • Gusts: 7 mph

More clouds than sun; cooler with a passing shower or two

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 29%
  • Precipitation: 0.14 in
  • Rain: 0.14 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 63° RealFeel® 62° Precipitation 55%

Night

N

E

S

W

  • ESE 4 mph
  • Gusts: 6 mph

Considerable cloudiness with a passing shower

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.05 in
  • Rain: 0.05 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - Aug 23

more Historical Weather Data >
  Today Normal Record 8/23/2013
High 77° 86° N/A 73°
Low 63° 66° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:30 AM with 13:25 of sunlight, then sets at 7:55 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:45 AM with 13:53 of moolight, then sets at 6:38 PM

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 >

Sat. Dust & Dander

Sat. Wind Maps