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.

Mostly Cloudy

85°F

29°C

Humidity 42%
Wind Speed S 15 G 24 mph
Barometer 29.74 in (1006.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 11 Mar 3:52 pm EDT
Extended Forecast for

Catharpin VA

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 79. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 79 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Scattered showers and thunderstorms, then showers likely after 4am. Some of the storms could be severe. Mostly cloudy, with a low around 45. South wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Severe
    Thunderstorms
    then Showers
    Likely

  • Thursday

    Thursday: Rain showers, possibly mixing with snow after 1pm, then gradually ending. Temperature falling to around 41 by noon. Breezy, with a northwest wind 15 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 47 °F⇓

    Showers and
    Breezy then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 54. Breezy, with a south wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 54 °F

    Partly Sunny
    then Mostly
    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 56.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 59.

    High: 59 °F

    Cloudy

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 79. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms, then showers likely after 4am. Some of the storms could be severe. Mostly cloudy, with a low around 45. South wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain showers, possibly mixing with snow after 1pm, then gradually ending. Temperature falling to around 41 by noon. Breezy, with a northwest wind 15 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 30. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Friday
Partly sunny, with a high near 54. Breezy, with a south wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 37 mph.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
Cloudy, with a high near 59.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Monday
Rain. High near 66. Chance of precipitation is 80%.
Monday Night
Rain likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 41.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Mostly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Catharpin VA
 38.86°N 77.58°W (Elev. 295 ft)
Last Update:
1:58 pm EDT Mar 11, 2026
Forecast Valid:
4pm EDT Mar 11, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation