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

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Light Rain

54°F

12°C

Humidity 87%
Wind Speed S 3 mph
Barometer 29.80 in (1009.0 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 21 Mar 1:52 am EDT
Extended Forecast for

5 Miles NW Catharpin VA

  • Overnight

    Overnight: Partly cloudy, with a low around 49. Southwest wind around 6 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. North wind around 7 mph.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. Light and variable wind becoming south around 6 mph in the evening.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 82. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 82 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain before 11pm, then a chance of rain and thunderstorms between 11pm and 2am, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 51. Southwest wind around 10 mph becoming northwest after midnight. Chance of precipitation is 70%.

    Low: 51 °F

    Chance Rain
    then Rain
    Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Partly sunny, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 49. Southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 65. North wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 47. Light and variable wind becoming south around 6 mph in the evening.
Sunday
Partly sunny, with a high near 82. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Sunday Night
A chance of rain before 11pm, then a chance of rain and thunderstorms between 11pm and 2am, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 51. Southwest wind around 10 mph becoming northwest after midnight. Chance of precipitation is 70%.
Monday
Rain likely, mainly before 8am. Partly sunny, with a high near 57. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Partly sunny, with a high near 67.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.
Friday
A chance of rain. Partly sunny, with a high near 59. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Catharpin VA
 38.9°N 77.62°W (Elev. 348 ft)
Last Update:
2:22 am EDT Mar 21, 2026
Forecast Valid:
2am EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation