• Today

    Sep 18

    77°Lo 52°

    Pleasant with clouds and sun

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

    Sep 20

    80°Lo 59°

    Clearing

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

    Sep 21

    85°Lo 57°

    Warm with partial sunshine

    Moderate ragweed pollen levels
    • Precip
      25%
    • 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
Next 8 hours >
  Thu
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Mostly Cloudy
Temp (°F) 54° 54° 54° 54° 54° 54° 55° 55°
RealFeel® 55° 53° 55° 55° 55° 55° 56° 56°
Humidity 100% 100% 93% 93% 93% 100% 96% 96%
   
  12am 1am 2am 3am 4am 5am 6am 7am
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%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 0 3 NE 0 0 0 0 0 0
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 41% 35% 43% 85% 75% 100% 100% 85%
Dew Point 54° 54° 52° 52° 52° 54° 54° 54°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 77° 79° N/A 72°
Low 52° 58° N/A 37°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:54 AM with 12:20 of sunlight, then sets at 7:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:46 AM with 14:16 of moolight, then sets at 4:02 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 >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps