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

Hurricane and Storm Surge Watches Issued for the Northern Gulf Coast for Strengthening Tropical Storm Isaias

Tropical Storm Isaias is forecast to track toward the central Gulf Coast while strengthening into a hurricane on Thursday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts along portions of the northern Gulf Coast Friday into Saturday. Isaias will bring heavy rainfall to the central Gulf Coast and much of the Southeast Friday into the weekend. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

72°F

22°C

Humidity 52%
Wind Speed S 9 mph
Barometer 29.89 in (1012.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 7 Oct 4:52 pm EDT
Extended Forecast for

Sterling VA

  • Tonight

    Tonight: Clear, with a low around 55. South wind 5 to 7 mph.

    Low: 55 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Southwest wind 9 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 73. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Showers, mainly after 2am. Low around 58. Chance of precipitation is 90%.

    Low: 58 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 67. Chance of precipitation is 90%.

    High: 67 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Cloudy, with a low around 62. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 55. South wind 5 to 7 mph.
Thursday
Sunny, with a high near 76. Southwest wind 9 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Thursday Night
Clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 73. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 53. Calm wind.
Saturday
Partly sunny, with a high near 74.
Saturday Night
Showers, mainly after 2am. Low around 58. Chance of precipitation is 90%.
Sunday
Showers and possibly a thunderstorm. High near 67. Chance of precipitation is 90%.
Sunday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Cloudy, with a low around 62. Chance of precipitation is 50%.
Columbus Day
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sterling VA
 39.02°N 77.4°W (Elev. 338 ft)
Last Update:
5:02 pm EDT Oct 7, 2026
Forecast Valid:
5pm EDT Oct 7, 2026-6pm EDT Oct 14, 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