• Early AM

    Sep 5

    Lo 71°

    Mostly cloudy

    Asthma Weather
    • Hi
      RealFeel
      100°
    • UV
      5 - High
    • Air Qual.
      Moderate
    more
  • Today

    Sep 5

    84°Lo 63°

    Clouds giving way to sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      88°
    • UV
      4 - Moderate
    • Air Qual.
      Moderate
  • Sun

    Sep 6

    85°Lo 65°

    Humid with plenty of sunshine

    Beneficial weather for asthma
    • Hi
      RealFeel
      90°
    • UV
      5 - High
    • Air Qual.
      Good
    more
  • Mon

    Sep 7

    88°Lo 66°

    Partly sunny

    Beneficial weather for asthma
    • Hi
      RealFeel
      93°
    • UV
      5 - High
    • Air Qual.
      Moderate
    more
  • Tue

    Sep 8

    90°Lo 71°

    Mostly sunny

    Beneficial weather for asthma
    • Hi
      RealFeel
      94°
    • UV
      5 - High
    • Air Qual.
      Moderate
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 73° 73° 72° 72° 71° 72° 73° 74°
RealFeel® 74° 74° 74° 72° 71° 73° 74° 76°
Humidity 84% 86% 86% 86% 87% 84% 80% 74%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Rain
 
7%
 
7%
 
7%
 
7%
 
5%
 
1%
 
1%
 
1%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 6 ENE 6 ENE 6 ENE 6 ENE 6 ENE 7 NE 7 NE 7 NE
UV Index 0 0 0 0 0 0 1 1
Cloud Cover 86% 96% 99% 100% 100% 95% 95% 95%
Dew Point 68° 68° 68° 67° 67° 67° 67° 66°
Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Sep 5

more Historical Weather Data >
  Today Normal Record 9/5/2014
High 84° 83° 97° (1881) 93°
Low 63° 66° 50° (1902) 76°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:41 AM with 12:52 of sunlight, then sets at 7:33 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:33 AM with 6:42 of moolight, then sets at 2:16 PM

Cabin John Weather Report

DC, Baltimore: Heat to Rebuild Labor Day Weekend After Cooldown

September 5, 2015; 1:35 AM ET

A backdoor front will trim temperatures, haze and humidity around the Washington, D.C., and Baltimore areas early this weekend before all three conditions build by early next week. more >

The Dangers of Bus Travel

Dec 10, 2012; 5:00 AM ET While bus transportation is one of the most affordable, it is important to know which motor coach companies rank highest in safety.

Sat. Air Quality

Sat. Asthma Risk

Sat. UV Index