• Tonight

    May 31

    Lo 62°

    Partly cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      78°
    • Hi
      RealFeel
      92°
    • Wind
      Speed
      4 mph
  • Wed

    Jun 1

    84°Lo 63°

    Clouds and sunny spells

    Poor for home energy
    • Avg
      RealFeel
      78°
    • Hi
      RealFeel
      92°
    • Wind
      Speed
      5 mph
    more
  • Thu

    Jun 2

    77°Lo 66°

    Variable clouds; not as warm

    Poor for home energy
    • Avg
      RealFeel
      72°
    • Hi
      RealFeel
      80°
    • Wind
      Speed
      6 mph
    more
  • Fri

    Jun 3

    80°Lo 63°

    A couple of thunderstorms

    Poor for home energy
    • Avg
      RealFeel
      77°
    • Hi
      RealFeel
      90°
    • Wind
      Speed
      5 mph
    more
  • Sat

    Jun 4

    81°Lo 66°

    Partly sunny

    Poor for home energy
    • Avg
      RealFeel
      77°
    • Hi
      RealFeel
      89°
    • Wind
      Speed
      5 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
11pm
Wed
12am
1am 2am 3am 4am 5am 6am
  11pm 12am 1am 2am 3am 4am 5am 6am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Temp (°F) 69° 67° 66° 65° 64° 62° 64° 64°
RealFeel® 70° 67° 66° 65° 66° 64° 66° 66°
Humidity 84% 86% 92% 93% 93% 100% 99% 97%
   
  11pm 12am 1am 2am 3am 4am 5am 6am
Rain
 
0%
 
0%
 
0%
 
1%
 
1%
 
1%
 
1%
 
1%
Snow
 
0%
 
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0%
 
0%
 
0%
 
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Ice
 
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  11pm 12am 1am 2am 3am 4am 5am 6am
Wind (mph) 1 N 2 N 2 NNE 2 E 2 NNE 2 N 2 N 4 NNE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 15% 10% 10% 46% 46% 46% 46% 46%
Dew Point 64° 63° 64° 63° 62° 62° 63° 63°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - May 31

more Historical Weather Data >
  Today Normal Record 5/31/2015
High 85° 77° N/A 90°
Low 62° 60° N/A 70°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:45 AM with 14:43 of sunlight, then sets at 8:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:46 AM with 12:34 of moolight, then sets at 3:20 PM

Rockville Weather Report

Bout of cooler air to interrupt summerlike warmth across northeastern US

May 31, 2016; 9:34 PM ET

Temperatures and humidity levels will throttle back as dry air expands southward in the northeastern United States through the middle of the week. more >

Tue. Home Energy Efficiency

Tue. Degree Days

Tue. UV Index