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

Areas of Fire Weather and Severe Thunderstorms on Friday

Critical fire weather is expected Friday across the Northern Plains, Upper Midwest, and southern High Plains due to gusty winds and low humidity. Severe thunderstorms capable of large to very large hail, wind damage and tornadoes will be possible Friday and Saturday across parts of the central Plains. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

53°F

12°C

Humidity 64%
Wind Speed NW 7 mph
Barometer 29.93 in (1013.4 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 14 May 11:52 pm EDT
Extended Forecast for

Herndon VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 48. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. Northwest wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62. Southwest wind 3 to 7 mph.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers before 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    Showers

  • Sunday Night

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

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 48. West wind around 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 71. Northwest wind 10 to 13 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 51. Calm wind.
Saturday
Sunny, with a high near 83. Calm wind becoming south 5 to 8 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 62. Southwest wind 3 to 7 mph.
Sunday
A slight chance of showers before 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Herndon VA
 38.97°N 77.41°W (Elev. 348 ft)
Last Update:
10:53 pm EDT May 14, 2026
Forecast Valid:
12am EDT May 15, 2026-6pm EDT May 21, 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