• Today

    Aug 29

    90°Lo 67°

    Partly sunny and very warm

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      2%
    • Hi
      RealFeel
      97°
    more
  • Tue

    Aug 30

    87°Lo 67°

    Sunshine; warm in the p.m.

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
      93°
  • Wed

    Aug 31

    88°Lo 67°

    Partly sunny and humid

    Very Good for lawn mowing
    • Hours of Precip
      0.5
    • Precip
      25%
    • Hi
      RealFeel
      96°
    more
  • Thu

    Sep 1

    81°Lo 62°

    Not as warm

    Good for lawn mowing
    • Hours of Precip
      0.5
    • Precip
      40%
    • Hi
      RealFeel
      84°
    more
  • Fri

    Sep 2

    79°Lo 59°

    Partly sunny and less humid

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      9%
    • Hi
      RealFeel
      82°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Sunny
Sunny
Temp (°F) 72° 70° 69° 69° 67° 69° 70° 74°
RealFeel® 71° 69° 68° 67° 65° 69° 71° 76°
Humidity 76% 76% 77% 80% 83% 81% 77% 71%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
3%
 
3%
 
3%
 
3%
 
3%
 
2%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 6 N 6 NNE 6 NNE 6 NNE 6 NNE 6 NNE 6 N 6 NNE
UV Index 0 0 0 0 0 0 1 2
Cloud Cover 26% 26% 26% 26% 26% 26% 4% 3%
Dew Point 64° 62° 62° 62° 62° 63° 63° 64°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Aug 30

more Historical Weather Data >
  Today Normal Record 8/30/2015
High 87° 81° N/A 88°
Low 67° 65° N/A 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:36 AM with 13:05 of sunlight, then sets at 7:41 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:46 AM with 13:57 of moolight, then sets at 6:43 PM

Rockville Weather Report

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

August 29, 2016; 12:20 PM ET

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

Tue. Overnight Freeze

Tue. Degree Days

Tue. Evapotranspiration