• Today

    Aug 27

    92°Lo 65°

    Mostly sunny and less humid

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

    Aug 28

    90°Lo 66°

    Mostly sunny and humid

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

    Aug 29

    91°Lo 64°

    Partly sunny and humid

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

    Aug 30

    89°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 63°

    A thunderstorm 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 >
  Mon
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
Partly Sunny
Partly Sunny
Mostly Sunny
Temp (°F) 73° 77° 82° 86° 88° 89° 91° 89°
RealFeel® 81° 86° 93° 99° 101° 101° 101° 96°
Humidity 87% 72% 64% 60% 54% 51% 49% 48%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
2%
 
2%
 
2%
 
2%
 
2%
 
2%
 
2%
 
2%
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) 2 NNW 2 NNW 4 NNW 4 N 4 N 4 N 4 NNE 5 NNE
UV Index 2 3 5 6 6 6 5 3
Cloud Cover 26% 26% 26% 26% 28% 31% 31% 29%
Dew Point 69° 68° 68° 70° 69° 69° 69° 67°
Middle Grid line 95 F 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

Temperature History - Aug 29

more Historical Weather Data >
  Today Normal Record 8/29/2015
High 91° 85° N/A 90°
Low 64° 64° N/A 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:36 AM with 13:08 of sunlight, then sets at 7:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:47 AM with 14:17 of moolight, then sets at 6:04 PM

Frederick Weather Report

More summery days await the northeastern US into September

August 27, 2016; 10:24 AM ET

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

Mon. Dust & Dander

Mon. Wind Maps