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

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

59°F

15°C

Humidity 60%
Wind Speed S 10 mph
Barometer 30.06 in (1017.7 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 13 May 12:52 am EDT
Extended Forecast for

2 Miles S Great Falls VA

  • Overnight

    Overnight: Partly cloudy, with a low around 56. South wind 11 to 13 mph, with gusts as high as 24 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 75. Southwest wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 11pm, then showers likely between 11pm and 1am. Low around 52. South wind 5 to 9 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 64. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. South wind 11 to 13 mph, with gusts as high as 24 mph.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 75. Southwest wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms before 11pm, then showers likely between 11pm and 1am. Low around 52. South wind 5 to 9 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 64. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 49. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Great Falls VA
 38.98°N 77.3°W (Elev. 299 ft)
Last Update:
10:53 pm EDT May 12, 2026
Forecast Valid:
1am EDT May 13, 2026-6pm EDT May 19, 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