• Tonight

    Sep 4

    Lo 70°

    Mostly cloudy and humid

    Asthma Weather
    • Hi
      RealFeel
      98°
    • UV
      5 - High
    • Air Qual.
      Moderate
  • Sat

    Sep 5

    83°Lo 63°

    Clouds giving way to sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      87°
    • UV
      5 - High
    • Air Qual.
      Moderate
    more
  • Sun

    Sep 6

    84°Lo 64°

    Mostly sunny and humid

    Beneficial weather for asthma
    • Hi
      RealFeel
      89°
    • UV
      4 - Moderate
    • Air Qual.
      Good
    more
  • Mon

    Sep 7

    88°Lo 66°

    Partly sunny, warm and humid

    Beneficial weather for asthma
    • Hi
      RealFeel
      92°
    • UV
      5 - High
    • Air Qual.
      Moderate
    more
  • Tue

    Sep 8

    91°Lo 69°

    Mostly sunny and hot

    Beneficial weather for asthma
    • Hi
      RealFeel
      95°
    • UV
      5 - High
    • Air Qual.
      Moderate
    more
Next Previous
Next 8 hours >
  Fri
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Mostly Cloudy
Cloudy
Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Temp (°F) 74° 74° 74° 73° 73° 72° 70° 73°
RealFeel® 79° 80° 80° 78° 77° 78° 74° 78°
Humidity 88% 87% 86% 87% 90% 92% 96% 89%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
7%
 
5%
 
1%
 
1%
 
1%
 
2%
 
2%
 
2%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 1 W 1 N 1 N 1 N 1 WNW 1 N 2 NNE 2 NNE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 79% 61% 57% 37% 49% 33% 39% 46%
Dew Point 70° 70° 70° 69° 69° 70° 69° 70°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2014
High 90° 84° N/A N/A
Low 70° 63° N/A N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:39 AM with 12:55 of sunlight, then sets at 7:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:48 PM with 14:27 of moolight, then sets at 2:15 PM

Lanham Weather Report

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

September 4, 2015; 5:15 PM 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.

Fri. Air Quality

Fri. Asthma Risk

Fri. UV Index