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

Fire Weather Concerns and Severe Thunderstorms through the Weekend

Dry and windy conditions, and some dry thunderstorms and lightning, may support hazardous fire activity in the northern Plains, high southern Plains and the Southwest this weekend. An active severe weather pattern is forecast for portions of the central and southern High Plains into the Upper Midwest through early the part of next week. Damaging winds, large hail, and tornadoes are possible. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Partly Cloudy

58°F

14°C

Humidity 65%
Wind Speed Calm
Barometer 30.07 in (1018.1 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 May 9:52 pm EDT
Extended Forecast for

3 Miles NNW Catharpin VA

  • Tonight

    Tonight: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 62. Southwest wind 3 to 8 mph.

    Low: 62 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 88. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Calm wind.
Saturday
Sunny, with a high near 84. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 62. Southwest wind 3 to 8 mph.
Sunday
A slight chance of showers and thunderstorms after 2pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 88. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 63. Calm wind.
Monday
Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Catharpin VA
 38.88°N 77.57°W (Elev. 305 ft)
Last Update:
7:53 pm EDT May 15, 2026
Forecast Valid:
10pm EDT May 15, 2026-6pm EDT May 22, 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