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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

82°F

28°C

Humidity 29%
Wind Speed W 7 G 21 mph
Barometer 29.90 in (1012.3 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Jun 12:52 pm EDT
Extended Forecast for

Sterling VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 85. West wind around 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. West wind 5 to 8 mph becoming calm after midnight.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88. West wind 5 to 14 mph, with gusts as high as 25 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 67. North wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 20%.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 89. South wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

    High: 89 °F

    Showers
    Likely then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 85. West wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 62. West wind 5 to 8 mph becoming calm after midnight.
Sunday
Sunny, with a high near 88. West wind 5 to 14 mph, with gusts as high as 25 mph.
Sunday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 67. North wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 20%.
Monday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 89. South wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Low around 65. Chance of precipitation is 80%.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 85.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sterling VA
 39°N 77.44°W (Elev. 299 ft)
Last Update:
10:53 am EDT Jun 20, 2026
Forecast Valid:
1pm EDT Jun 20, 2026-6pm EDT Jun 26, 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