• Clear 77°
    Asthma Current Weather
    • Relative Humidity
      83%
    • Yesterday
      Temp
      79°
    • Pressure
      29.93 inHg
  • Tonight

    Jul 26

    Lo 73°

    A t-storm in the area late

    Asthma Weather
    • Hi
      RealFeel
      101°
    • UV
      5 - High
    • Air Qual.
      Moderate
    Day Details >
  • Tomorrow

    Jul 27

    Hi 89°

    Partly sunny and less humid

    Neutral weather for asthma
    • Hi
      RealFeel
      101°
    • UV
      5 - High
    • Air Qual.
      Moderate
    Day Details >
  • Thursday

    Jul 28

    Hi 91°

    A t-storm in the afternoon

    Neutral weather for asthma
    • Hi
      RealFeel
      106°
    • UV
      5 - High
    • Air Qual.
      Moderate
    Day Details >
Next

Thunderstorms in the area Friday morning through Friday evening

7/26 7/27 Now: 11:47pm
PM 11-3
  • 11pm Intermittent clouds 81° 6%
  • 12am Partly cloudy 79° 6%
  • 1am Partly cloudy 79° 8%
  • 2am Partly cloudy 78° 11%
  • 3am Partly cloudy 77° 11%
AM 10-3
  • 10am Partly sunny 80° 5%
  • 11am Partly sunny 83° 5%
  • 12pm Partly sunny 85° 5%
  • 1pm Partly sunny 87° 4%
  • 2pm Partly sunny 87° 2%
  • 3pm Partly sunny 88° 2%
PM 4-9
  • 4pm Partly sunny 89° 2%
  • 5pm Partly sunny 87° 2%
  • 6pm Partly sunny 86° 2%
  • 7pm Partly sunny 85° 3%
  • 8pm Partly sunny 82° 5%
  • 9pm Partly cloudy 79° 5%
Hourly Forecast >
Jul 26, 2016; 2:34 PM ET
Five-day Weather Forecast for Washington, DC
Washington, DC Weather Forecast

Greenbelt Weather Report

Dangerous heat wave to persist in northeastern US much of this week

July 26, 2016; 10:00 PM ET

A stifling heat wave will remain entrenched across the Northeast much of this week, despite a brief reprieve in humidity for some. more >

Respiratory Health Live Feed

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Tue. Air Quality

Tue. Asthma Risk

Tue. UV Index