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Tropical Storm Edouard Along the Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard off the central Gulf Coast will bring tropical storm conditions and heavy rainfall to portions of Upper Texas and southwestern Louisiana coasts Tuesday into Wednesday. Storm Surge Watches and Tropical Storm Warnings are in effect. Hot and humid conditions will continue to expand from the Central Plains into the Ohio Valley and Mid-Atlantic this week. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

75°F

24°C

Humidity 94%
Wind Speed S 5 mph
Barometer 30.05 in (1017.3 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 1 Sep 1:52 am EDT
Extended Forecast for

Fairfax VASimilar City Names

  • Overnight

    Overnight: Mostly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95. Calm wind becoming west around 6 mph in the afternoon.

    High: 95 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Partly cloudy, with a low around 75. Light and variable wind. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 101. Light west wind. Chance of precipitation is 20%.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 74. Southeast wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 72. Calm wind.
Tuesday
Mostly sunny, with a high near 95. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Partly cloudy, with a low around 75. Light and variable wind. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 101. Light west wind. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 74. Southeast wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 95.
Thursday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 61.
Labor Day
Sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VASimilar City Names
 38.85°N 77.29°W (Elev. 400 ft)
Last Update:
10:52 pm EDT Aug 31, 2026
Forecast Valid:
2am EDT Sep 1, 2026-6pm EDT Sep 7, 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