• Today

    Jul 13

    91°Lo 71°

    A t-storm late this afternoon

    At Risk weather for asthma
    • Hi
      RealFeel
      99°
    • UV
      7 - High
    • Air Qual.
      Moderate
  • Mon

    Jul 14

    91°Lo 70°

    Strong t-storms, mainly later

    At High Risk weather for asthma
    • Hi
      RealFeel
      103°
    • UV
      7 - High
    • Air Qual.
      Moderate
    more
  • Tue

    Jul 15

    87°Lo 64°

    Heavy thunderstorms

    At Risk weather for asthma
    • Hi
      RealFeel
      96°
    • UV
      7 - High
    • Air Qual.
      Good
    more
  • Wed

    Jul 16

    81°Lo 60°

    Partly sunny and pleasant

    Beneficial weather for asthma
    • Hi
      RealFeel
      85°
    • UV
      7 - High
    • Cloud
      Cover
      45%
    more
  • Thu

    Jul 17

    82°Lo 62°

    Partly sunny and pleasant

    Beneficial weather for asthma
    • Hi
      RealFeel
      87°
    • UV
      8 - Very High
    • Cloud
      Cover
      29%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
11am
12pm 1pm 2pm 3pm 4pm 5pm 6pm
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Forecast
Partly Sunny
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 83° 86° 87° 89° 87° 91° 89° 88°
RealFeel® 89° 92° 94° 93° 98° 99° 93° 94°
Humidity 60% 55% 52% 49% 66% 57% 56% 65%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Rain
 
7%
 
7%
 
9%
 
12%
 
12%
 
16%
 
43%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Wind (mph) 8 SSW 8 S 8 SSW 8 SSW 9 SSW 9 S 8 S 8 S
UV Index 6 7 7 6 6 4 3 1
Cloud Cover 39% 49% 51% 69% 49% 57% 58% 66%
Dew Point 68° 68° 67° 67° 75° 74° 71° 75°
Middle Grid line 95 F Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F

Temperature History - Jul 13

more Historical Weather Data >
  Today Normal Record 7/13/2013
High 91° 89° 100° (1954) 86°
Low 71° 71° 56° (1888) 72°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:53 AM with 14:42 of sunlight, then sets at 8:35 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:23 PM with 11:10 of moolight, then sets at 8:33 AM

Top Story

Rockville Weather Report

DC Faces Two Days of Drenching, Severe Storms

July 13, 2014; 3:07 PM ET

Washington, D.C., faces not one, but two days of drenching and severe thunderstorms early this week. more >

Battling the Common Cold

Jun 23, 2014; 5:00 AM ET Marja Martinez talks about identifying and fighting the common cold.

Sun. Air Quality

Sun. Asthma Risk

Sun. UV Index