• Early AM

    Dec 20

    Lo 27°

    Clear

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      1%
    • Hi
      RealFeel
      38°
    more
  • Today

    Dec 20

    41°Lo 26°

    Mostly cloudy

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      44°
    more
  • Sun

    Dec 21

    44°Lo 29°

    Partly sunny

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      4%
    • Hi
      RealFeel
      47°
    more
  • Mon

    Dec 22

    44°Lo 38°

    Cloudy, afternoon rain

    Poor for lawn mowing
    • Hours of Precip
      6
    • Precip
      82%
    • Hi
      RealFeel
      42°
  • Tue

    Dec 23

    52°Lo 47°

    Cloudy with a little rain

    Poor for lawn mowing
    • Hours of Precip
      8.5
    • Precip
      57%
    • Hi
      RealFeel
      51°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Rain
Temp (°F) 36° 39° 41° 42° 42° 44° 42° 41°
RealFeel® 33° 37° 40° 41° 41° 42° 39° 35°
Humidity 71% 66% 62% 62% 69% 70% 74% 77%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
3%
 
4%
 
4%
 
7%
 
24%
 
24%
 
30%
 
71%
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) 6 ESE 6 ESE 6 ESE 6 ESE 6 ESE 6 E 6 E 6 ENE
UV Index 0 1 1 1 1 1 0 0
Cloud Cover 93% 90% 89% 88% 89% 92% 96% 99%
Dew Point 27° 29° 29° 30° 33° 35° 34° 34°
Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F

Temperature History - Dec 22

more Historical Weather Data >
  Today Normal Record 12/22/2013
High 44° 43° N/A 70°
Low 38° 28° N/A 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:27 AM with 9:23 of sunlight, then sets at 4:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:38 AM with 10:19 of moolight, then sets at 5:57 PM

Frederick Weather Report

DC: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 19, 2014; 2:11 PM ET

Following benign weather this weekend, a major storm will affect Washington, D.C., much of the East and Midwest on Christmas Eve. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Mon. Degree Days

Mon. Evapotranspiration