Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

68°F

20°C

Humidity 57%
Wind Speed W 7 mph
Barometer 29.90 in (1012.1 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 20 Jun 3:52 am EDT
Extended Forecast for

Herndon VA

  • Today

    Today: Mostly sunny, with a high near 85. West wind 8 to 15 mph, with gusts as high as 26 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. West wind 6 to 10 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 87. West wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after 2am.  Mostly cloudy, with a low around 68. North wind 5 to 7 mph becoming light and variable.  Chance of precipitation is 20%.

    Low: 68 °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 18 mph, with gusts as high as 25 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

Today
Mostly sunny, with a high near 85. West wind 8 to 15 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 63. West wind 6 to 10 mph.
Sunday
Mostly sunny, with a high near 87. West wind 6 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 68. North wind 5 to 7 mph becoming light and variable. Chance of precipitation is 20%.
Monday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 89. South wind 9 to 18 mph, with gusts as high as 25 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 85. 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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ABOUT THIS FORECAST

 
Point Forecast:
Herndon VA
 38.97°N 77.38°W (Elev. 354 ft)
2:22 am EDT Jun 20, 2026
4am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
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Additional Resources

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