• Today

    Aug 30

    87°Lo 63°

    Mostly sunny

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      4%
    • Hi
      RealFeel
      94°
    more
  • Wed

    Aug 31

    88°Lo 68°

    Very warm with periods of sun

    Very Good for lawn mowing
    • Hours of Precip
      0.5
    • Precip
      14%
    • Hi
      RealFeel
      98°
    more
  • Thu

    Sep 1

    80°Lo 59°

    Not as warm with a t-storm

    Very Good for lawn mowing
    • Hours of Precip
      1.5
    • Precip
      57%
    • Hi
      RealFeel
      87°
  • Fri

    Sep 2

    77°Lo 58°

    Partly sunny

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      4%
    • Hi
      RealFeel
      79°
    more
  • Sat

    Sep 3

    78°Lo 58°

    Pleasant with plenty of sun

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
      82°
    more
Next Previous
A shower or thunderstorm 78° Lo 70° RealFeel® 84° / 67°

N

E

S

W

  • Precipitation: 55%
  • Rain: 0.13 in
  • Snow: 0 in
  • Humidity: 76%
  • Cloud Cover: 91%
  • Dew Point: 66° F
  • Visibility: 9 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. Degree Days

Thu. Evapotranspiration