• Tonight

    Aug 27

    Lo 66°

    Mainly clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Aug 28

    90°Lo 66°

    Mostly sunny

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
  • Mon

    Aug 29

    91°Lo 65°

    Partly sunny and humid

    Moderate ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Tue

    Aug 30

    88°Lo 66°

    Partly sunny and very warm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Wed

    Aug 31

    91°Lo 66°

    A p.m. t-storm in spots

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
6am
7am 8am 9am 10am 11am 12pm 1pm
  6am 7am 8am 9am 10am 11am 12pm 1pm
Forecast
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 66° 68° 70° 74° 77° 82° 85° 87°
RealFeel® 67° 71° 75° 82° 87° 93° 99° 99°
Humidity 100% 100% 96% 88% 74% 65% 60% 52%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Rain
 
1%
 
1%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  6am 7am 8am 9am 10am 11am 12pm 1pm
Wind (mph) 2 E 2 ENE 2 NE 2 ENE 4 E 4 ESE 4 ESE 4 ESE
UV Index 0 0 1 2 4 5 6 7
Cloud Cover 11% 12% 15% 14% 11% 11% 11% 11%
Dew Point 66° 68° 69° 70° 69° 69° 70° 68°
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 Middle Grid line 65 F

Temperature History - Aug 28

more Historical Weather Data >
  Today Normal Record 8/28/2015
High 90° 85° N/A 84°
Low 66° 65° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:35 AM with 13:11 of sunlight, then sets at 7:46 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:47 AM with 14:32 of moolight, then sets at 5:19 PM

Frederick Weather Report

More summery days await the northeastern US into September

August 27, 2016; 12:24 PM ET

Summer heat has returned to the northeastern United States and will continue to dominate most days into September. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps