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

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

74°F

23°C

Humidity 57%
Wind Speed S 8 mph
Barometer 29.86 in (1011.0 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 11 Mar 12:52 pm EDT
Extended Forecast for

3 Miles WNW Catharpin VA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Partly sunny, with a high near 79. South wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 79 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers after 4am. Some of the storms could be severe. Low around 44. Southwest wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Severe
    Thunderstorms
    then Showers

  • Thursday

    Thursday: Showers, mainly before 8am. High near 46. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Showers and
    Breezy then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 55. Breezy, with a south wind 7 to 12 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 55 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Partly sunny, with a high near 79. South wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tonight
A chance of showers and thunderstorms, then showers after 4am. Some of the storms could be severe. Low around 44. Southwest wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers, mainly before 8am. High near 46. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly clear, with a low around 31. Northwest wind 5 to 7 mph becoming calm after midnight.
Friday
Partly sunny, with a high near 55. Breezy, with a south wind 7 to 12 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Mostly cloudy, with a high near 61.
Sunday Night
Rain, mainly after 8pm. Low around 49. Chance of precipitation is 80%.
Monday
Rain. High near 60. Chance of precipitation is 80%.
Monday Night
A chance of rain. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Catharpin VA
 38.86°N 77.6°W (Elev. 348 ft)
Last Update:
10:57 am EDT Mar 11, 2026
Forecast Valid:
1pm EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation