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.

Mostly Cloudy

84°F

29°C

Humidity 65%
Wind Speed Vrbl 6 mph
Barometer 30.12 in (1019.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 16 Aug 12:52 pm EDT
Extended Forecast for

2 Miles WSW Great Falls VA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 89. Light southeast wind.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. Light south wind.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 91. Light southwest wind.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Light and variable wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers after 2pm. Mostly sunny, with a high near 84. Northeast wind around 6 mph. Chance of precipitation is 20%.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 89. Light southeast wind.
Tonight
Mostly clear, with a low around 70. Light south wind.
Sunday
Sunny, with a high near 91. Light southwest wind.
Sunday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Light and variable wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.
Monday
A slight chance of showers after 2pm. Mostly sunny, with a high near 84. Northeast wind around 6 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 81.
Tuesday Night
A chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Great Falls VA
 39.01°N 77.32°W (Elev. 348 ft)
Last Update:
11:48 am EDT Aug 16, 2025
Forecast Valid:
12pm EDT Aug 16, 2025-6pm EDT Aug 22, 2025
 
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