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

Tropical Depression Nine Forms; Heavy Rainfall in the Southwest and Southeast this Weekend

Tropical Depression Nine has formed and will continue to slowly move to the north-northwest in the coming days. As the storm passes close to the east coast of Florida, tropical storm conditions are possible Sunday through Monday. Tropical Storm Watches have been issued. Significant uncertainty remains in the track and intensity, but chances for impacts to the Southeast are increasing. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

80°F

27°C

Humidity 49%
Wind Speed Vrbl 6 mph
Barometer 30.13 in (1020.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 28 Sep 12:52 pm EDT
Extended Forecast for

Reston VA

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. North wind around 6 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 62. Calm wind.

    Low: 62 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 80. North wind around 6 mph becoming east in the afternoon.

    High: 80 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A slight chance of showers after 2am. Cloudy, with a low around 65. Light east wind. Chance of precipitation is 20%.

    Low: 65 °F

    Cloudy then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Cloudy, with a high near 76. North wind around 7 mph.

    High: 76 °F

    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. North wind around 6 mph.
Tonight
Increasing clouds, with a low around 62. Calm wind.
Monday
Mostly cloudy, with a high near 80. North wind around 6 mph becoming east in the afternoon.
Monday Night
A slight chance of showers after 2am. Cloudy, with a low around 65. Light east wind. Chance of precipitation is 20%.
Tuesday
Cloudy, with a high near 76. North wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.95°N 77.36°W (Elev. 446 ft)
Last Update:
10:29 am EDT Sep 28, 2025
Forecast Valid:
1pm EDT Sep 28, 2025-6pm EDT Oct 4, 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