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

Severe Thunderstorm Threat from Northeastern Oregon to Southeastern Missouri; Red Flag Warnings In The West

Severe thunderstorm winds and hail are most probable today into tonight from eastern Oregon across the northern Rockies/Plains to parts of Illinois and southeastern Missouri. Further Southwest, strong winds and low humidity have led to areas of Red Flag Warnings from southern Washington to central Arizona. 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

90°F

32°C

Humidity 38%
Wind Speed W 8 mph
Barometer 30.05 in (1017.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 26 Jun 5:52 pm EDT
Extended Forecast for

Reston VA

  • Tonight

    Tonight: Mostly clear, with a low around 70. West wind 5 to 7 mph.

    Mostly Clear

    Low: 70 °F

  • Thursday

    Thursday: Sunny, with a high near 90. Northwest wind around 6 mph.

    Sunny

    High: 90 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 71. Light and variable wind.

    Partly Cloudy

    Low: 71 °F

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.

    Sunny then
    Slight Chance
    T-storms

    High: 93 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 72. South wind 3 to 5 mph.

    Partly Cloudy

    Low: 72 °F

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 30%.

    Chance
    Showers then
    Chance
    T-storms

    High: 92 °F

  • Saturday
    Night

    Saturday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Chance
    T-storms then
    Partly Cloudy

    Low: 73 °F

  • Sunday

    Sunday: A chance of showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.

    Chance
    Showers

    High: 89 °F

  • Sunday
    Night

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

    Partly Cloudy

    Low: 67 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 70. West wind 5 to 7 mph.
Thursday
Sunny, with a high near 90. Northwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 71. Light and variable wind.
Friday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 72. South wind 3 to 5 mph.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Saturday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 69.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Tuesday Night
A chance of thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Reston VA
 38.95°N 77.36°W (Elev. 446 ft)
Last Update:
4:32 pm EDT Jun 26, 2019
Forecast Valid:
6pm EDT Jun 26, 2019-6pm EDT Jul 3, 2019
 
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