• Today

    Aug 20

    86°Lo 67°

    A thunderstorm in spots

    Good for driving
    • Precip
      40%
    • Hours of Precip
      1.5
    • Rain
      0.14 in
    more
  • Thu

    Aug 21

    87°Lo 68°

    A couple of thunderstorms

    Good for driving
    • Precip
      60%
    • Hours of Precip
      4.5
    • Rain
      0.28 in
  • Fri

    Aug 22

    85°Lo 68°

    A couple of thunderstorms

    Good for driving
    • Precip
      61%
    • Hours of Precip
      6
    • Rain
      0.47 in
    more
  • Sat

    Aug 23

    79°Lo 66°

    A brief shower or two

    Good for driving
    • Precip
      60%
    • Hours of Precip
      2
    • Rain
      0.12 in
    more
  • Sun

    Aug 24

    78°Lo 64°

    Times of clouds and sun

    Excellent for driving
    • Precip
      25%
    • Hours of Precip
      0
    • Rain
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Cloudy
T-storms
Partly Cloudy
Partly Cloudy
T-storms
Partly Cloudy
Partly Cloudy
T-storms
Temp (°F) 74° 77° 80° 83° 81° 85° 87° 81°
RealFeel® 80° 84° 91° 95° 94° 96° 95° 91°
Humidity 86% 78% 70% 64% 72% 61% 55% 75%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
47%
 
51%
 
47%
 
47%
 
51%
 
47%
 
47%
 
51%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 2 SSE 2 SW 2 SW 3 WSW 3 WSW 3 WSW 3 WSW 4 WSW
UV Index 2 3 5 5 6 5 4 3
Cloud Cover 70% 70% 70% 70% 70% 70% 70% 70%
Dew Point 70° 69° 70° 70° 72° 70° 69° 73°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 87° 83° N/A 89°
Low 68° 65° N/A 68°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 13:29 of sunlight, then sets at 7:55 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:56 AM with 14:25 of moolight, then sets at 5:21 PM

Top Story

Greenbelt Weather Report

DC: Downpour, Flooding Risk to Increase Into Thursday

August 20, 2014; 3:08 AM ET

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

Travel Weather Forecast

Aug 20, 2014; 6:42 AM ET United States travel weather forecast

Thu. Travel Weather

48 Hour Precipitation Forecast

Thu. Driving Weather