• Today

    Aug 30

    87°Lo 63°

    Mostly sunny

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      94°
    • UV
      5 - High
    • Cloud
      Cover
      23%
    more
  • Wed

    Aug 31

    88°Lo 68°

    Very warm with periods of sun

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      98°
    • UV
      5 - High
    • Cloud
      Cover
      48%
    more
  • Thu

    Sep 1

    80°Lo 59°

    Not as warm with a t-storm

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      87°
    • UV
      4 - Moderate
    • Cloud
      Cover
      68%
  • Fri

    Sep 2

    77°Lo 58°

    Partly sunny

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      79°
    • UV
      5 - High
    • Cloud
      Cover
      27%
    more
  • Sat

    Sep 3

    78°Lo 58°

    Pleasant with plenty of sun

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      82°
    • UV
      5 - High
    • Cloud
      Cover
      0%
    more
Next Previous
Clear 64° Lo 59° RealFeel® 63° / 58°

N

E

S

W

  • Precipitation: 9%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 85%
  • Cloud Cover: 6%
  • Dew Point: 57° F
  • Visibility: 10 mi
6 mph

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2015
High 80° 81° N/A 91°
Low 59° 65° N/A 66°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:38 AM with 13:00 of sunlight, then sets at 7:38 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:47 AM with 13:06 of moolight, then sets at 7:53 PM

Rockville Weather Report

September to start on cooler, less humid note in northeastern US

August 30, 2016; 1:24 AM ET

Brief relief from heat and humidity will arrive in the northeastern United States during the first days of September. more >

Thu. Sinus Headache

Thu. UV Index