• Today

    Aug 26

    92°Lo 67°

    Mostly sunny, hot and humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      100°
    • UV
      5 - High
    • Cloud
      Cover
      24%
    more
  • Sat

    Aug 27

    90°Lo 65°

    Mostly sunny and less humid

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      95°
    • UV
      5 - High
    • Cloud
      Cover
      14%
  • Sun

    Aug 28

    88°Lo 65°

    Mostly sunny

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      94°
    • UV
      5 - High
    • Cloud
      Cover
      12%
    more
  • Mon

    Aug 29

    91°Lo 67°

    A t-storm around in the p.m.

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      99°
    • UV
      5 - High
    • Cloud
      Cover
      42%
    more
  • Tue

    Aug 30

    89°Lo 68°

    A p.m. t-storm in spots

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      98°
    • UV
      5 - High
    • Cloud
      Cover
      38%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Clear
Clear
Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 70° 67° 71° 73° 77° 80° 84° 86°
RealFeel® 72° 68° 71° 76° 82° 86° 90° 94°
Humidity 91% 97% 84% 80% 71% 60% 53% 49%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
2%
 
2%
 
2%
 
3%
 
3%
 
3%
 
3%
 
3%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 4 NNW 4 N 5 NNE 5 NE 6 NE 6 ENE 6 E 6 E
UV Index 0 0 0 1 2 4 5 6
Cloud Cover 9% 9% 9% 10% 11% 14% 16% 16%
Dew Point 67° 66° 66° 67° 67° 65° 65° 65°
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 27

more Historical Weather Data >
  Today Normal Record 8/27/2015
High 90° 82° N/A 79°
Low 65° 66° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:33 AM with 13:13 of sunlight, then sets at 7:46 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:50 AM with 14:36 of moolight, then sets at 4:26 PM

Rockville Weather Report

Is summer heat, humidity over for the northeastern US?

August 26, 2016; 2:02 AM ET

Following a taste of autumn chill to start the week, is summer heat and humidity over for the northeastern United States? more >

Sat. Sinus Headache

Sat. UV Index