• Tonight

    Sep 17

    Lo 55°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Thu

    Sep 18

    77°Lo 52°

    Mostly sunny and pleasant

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

    Sep 19

    72°Lo 56°

    Partly sunny and pleasant

    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
    • Precip
      25%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      70%
    more
  • Sun

    Sep 21

    85°Lo 60°

    Warm with partial sunshine

    Ragweed Pollen Weather
    • Precip
      18%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      38%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 58° 61° 64° 67° 69° 70° 72° 71°
RealFeel® 59° 65° 70° 72° 74° 75° 75° 72°
Humidity 77% 69% 64% 61% 57% 56% 53% 57%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
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) 4 NE 4 ENE 4 ENE 4 E 5 E 5 ESE 5 ESE 5 ESE
UV Index 1 3 4 5 5 5 4 3
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 26%
Dew Point 51° 51° 52° 53° 53° 54° 55° 55°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Sep 19

more Historical Weather Data >
  Today Normal Record 9/19/2013
High 72° 79° N/A 79°
Low 56° 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 17, 2014; 7:11 AM ET

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

Fri. Dust & Dander

Fri. Wind Maps