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

Mid-Atlantic Severe Thunderstorms; Western Heat Wave

A persistent heat wave will continue to bring dangerously hot temperatures and set new records across much of the Western U.S. through this week. Excessive Heat Watches and Warnings are in effect. Severe thunderstorms associated with damaging wind gusts and hail will be possible across parts of the Mid-Atlantic, including the National Capitol Region, this afternoon and evening. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

87°F

31°C

Humidity 42%
Wind Speed SW 8 mph
Barometer 29.74 in (1006.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 14 Jun 5:52 pm EDT
Extended Forecast for

Reston VA

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 3am, then a slight chance of thunderstorms after 5am. Some storms could be severe, with hail, damaging winds, and gusty winds. Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Severe
    Thunderstorms

    Low: 63 °F

  • Tuesday

    Tuesday: A slight chance of showers before 7am, then a slight chance of showers after 3pm. Sunny, with a high near 80. Northwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    Mostly Sunny
    then Slight
    Chance
    Showers

    High: 80 °F

  • Tuesday
    Night

    Tuesday Night: A slight chance of showers before 9pm. Mostly clear, with a low around 60. Northwest wind 5 to 8 mph. Chance of precipitation is 20%.

    Slight Chance
    Showers then
    Mostly Clear

    Low: 60 °F

  • Wednesday

    Wednesday: Sunny, with a high near 79. Northwest wind 6 to 8 mph.

    Sunny

    High: 79 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 54. Northwest wind around 6 mph.

    Mostly Clear

    Low: 54 °F

  • Thursday

    Thursday: Sunny, with a high near 78.

    Sunny

    High: 78 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 56.

    Mostly Clear

    Low: 56 °F

  • Friday

    Friday: Sunny, with a high near 87.

    Sunny

    High: 87 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 67.

    Partly Cloudy

    Low: 67 °F

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 3am, then a slight chance of thunderstorms after 5am. Some storms could be severe, with hail, damaging winds, and gusty winds. Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A slight chance of showers before 7am, then a slight chance of showers after 3pm. Sunny, with a high near 80. Northwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers before 9pm. Mostly clear, with a low around 60. Northwest wind 5 to 8 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 79. Northwest wind 6 to 8 mph.
Wednesday Night
Mostly clear, with a low around 54. Northwest wind around 6 mph.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 67.
Saturday
A chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 90. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Scattered showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Reston VA
 38.97°N 77.36°W (Elev. 430 ft)
Last Update:
4:33 pm EDT Jun 14, 2021
Forecast Valid:
6pm EDT Jun 14, 2021-6pm EDT Jun 21, 2021
 
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