National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Weather and Heavy Rainfall in the Midwest and Desert Southwest; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall are possible in the Midwest into the Central Appalachians and the Desert Southwest early this week. Storms are also expected in parts of the northern Plains today. Fire weather and air quality concerns will persist across portions of the West. Mid-summer heat will continue across much of the CONUS this week, especially in the the south-central High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Partly Cloudy

81°F

27°C

Humidity 69%
Wind Speed NW 5 mph
Barometer 30.07 in (1017.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 10 Aug 8:52 am EDT
Extended Forecast for

3 Miles W Fairfax VA

  • Today

    Today: A chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 92. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 30%.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming light and variable. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. West wind 5 to 8 mph. Chance of precipitation is 30%.

    High: 89 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 70. West wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Northwest wind around 6 mph. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 20%.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 83. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 92. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 30%.
Tonight
A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming light and variable. Chance of precipitation is 20%.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. West wind 5 to 8 mph. Chance of precipitation is 30%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. West wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Northwest wind around 6 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Thursday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 20%.
Friday
A slight chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 83. Chance of precipitation is 20%.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
A chance of showers. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Fairfax VA
 38.85°N 77.35°W (Elev. 400 ft)
Last Update:
8:33 am EDT Aug 10, 2026
Forecast Valid:
9am EDT Aug 10, 2026-6pm EDT Aug 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation