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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

64°F

18°C

Humidity 63%
Wind Speed Calm
Barometer 30.42 in (1030.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 10 Oct 10:52 am EDT
Extended Forecast for

Reston VA

  • Today

    Today: Cloudy, with a high near 70. East wind 6 to 8 mph.

    High: 70 °F

    Cloudy

  • Tonight

    Tonight: Showers, mainly after 2am. Low around 59. East wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 5pm. High near 69. East wind 13 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 69 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 62. East wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers

  • Columbus Day

    Columbus Day: A chance of showers before 8am. Partly sunny, with a high near 73. Northwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 73 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 59. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, with a high near 70. East wind 6 to 8 mph.
Tonight
Showers, mainly after 2am. Low around 59. East wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers, with thunderstorms also possible after 5pm. High near 69. East wind 13 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 62. East wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Columbus Day
A chance of showers before 8am. Partly sunny, with a high near 73. Northwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 79.
Tuesday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 59. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
A slight chance of showers. Mostly sunny, with a high near 65. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 20%.
Friday
A chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.97°N 77.36°W (Elev. 430 ft)
Last Update:
10:53 am EDT Oct 10, 2026
Forecast Valid:
11am EDT Oct 10, 2026-6pm EDT Oct 16, 2026
 
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