• Today

    Sep 18

    82°Lo 52°

    Pleasant with clouds and sun

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

    Sep 19

    74°Lo 58°

    Fog in the a.m.; partly sunny

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
  • Sat

    Sep 20

    80°Lo 59°

    Clouds breaking for some sun

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Sun

    Sep 21

    85°Lo 57°

    A couple of p.m. t-storms

    Moderate ragweed pollen levels
    • Precip
      60%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      44%
    more
  • Mon

    Sep 22

    74°Lo 49°

    A shower possible

    Ragweed Pollen Weather
    • Precip
      30%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      48%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Fog
Fog
Fog
Temp (°F) 54° 54° 54° 52° 53° 55° 58° 62°
RealFeel® 53° 52° 52° 50° 52° 55° 59° 65°
Humidity 79% 80% 81% 87% 81% 80% 76% 67%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 3 NNE 3 NNE 3 NNE 3 NNE 3 NNE 3 NNE 4 NNE 5 NE
UV Index 0 0 0 0 0 0 1 3
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 26%
Dew Point 48° 48° 48° 48° 47° 49° 50° 50°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Sep 19

more Historical Weather Data >
  Today Normal Record 9/19/2013
High 74° 79° N/A 79°
Low 58° 58° N/A 45°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:54 AM with 12:18 of sunlight, then sets at 7:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:39 AM with 13:59 of moolight, then sets at 4:38 PM

Top Story

Frederick Weather Report

DC: Remainder of Week to Be Dry, Cool

September 18, 2014; 7:11 AM ET

Rainfall will be scarce around Washington, D.C., this week, but cool air will be plentiful. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps