• Today

    Jul 27

    91°Lo 72°

    A thunderstorm around

    Good for driving
    • Precip
      40%
    • Hours of Precip
      0.5
    • Rain
      0.04 in
  • Thu

    Jul 28

    88°Lo 71°

    A heavy thunderstorm

    Good for driving
    • Precip
      55%
    • Hours of Precip
      7.5
    • Rain
      1.10 in
    more
  • Fri

    Jul 29

    83°Lo 67°

    A couple of thunderstorms

    Fair for driving
    • Precip
      69%
    • Hours of Precip
      10
    • Rain
      1.24 in
    more
  • Sat

    Jul 30

    85°Lo 69°

    Thundershower

    Good for driving
    • Precip
      57%
    • Hours of Precip
      5
    • Rain
      0.66 in
    more
  • Sun

    Jul 31

    82°Lo 68°

    Mostly cloudy with a t-storm

    Fair for driving
    • Precip
      57%
    • Hours of Precip
      2.5
    • Rain
      0.22 in
    more
Next Previous
A passing thunderstorm 91° Lo 86° RealFeel® 101° / 91°

N

E

S

W

  • Precipitation: 40%
  • Rain: 0.04 in
  • Snow: 0 in
  • Humidity: 52%
  • Cloud Cover: 66%
  • Dew Point: 69° F
  • Visibility: 9 mi
4 mph

Temperature History - Jul 27

more Historical Weather Data >
  Today Normal Record 7/27/2015
High 91° 85° N/A 82°
Low 72° 69° N/A 70°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:05 AM with 14:19 of sunlight, then sets at 8:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:42 AM with 13:41 of moolight, then sets at 2:23 PM

Rockville Weather Report

Heat wave to deteriorate across northeastern US as downpours unleash up to 2 inches of rain

July 27, 2016; 1:23 PM ET

As July draws to a close, a storm system swinging up from the Deep South will bring downpours to the northeastern U.S. and break the back of an extended heat wave. more >

Travel Weather Forecast

Jul 27, 2016; 9:59 AM ET United States travel weather forecast

Wed. Travel Weather

48 Hour Precipitation Forecast

Wed. Driving Weather