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

Cold Temperatures Continue in the Southeast; Snow in the Central Appalachians and Ohio Valley; Rain and Thunderstorms in the Southeast

Cold temperatures will persist across Florida and the Southeast through Tuesday, then milder conditions are expected beginning Wednesday. A frontal system is expected to bring wintry precipitation to the Central Appalachians and portions of the Mid-Atlantic Tuesday into Wednesday, meanwhile, showers and thunderstorms are expected along the Gulf Coast and Southeast. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

23°F

-5°C

Humidity 68%
Wind Speed SE 3 mph
Barometer 30.17 in (1022.0 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 3 Feb 12:52 am EST
Extended Forecast for

Herndon VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after 1pm. Increasing clouds, with a high near 38. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.

    High: 38 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of snow before 1am. Mostly cloudy, with a low around 23. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 40%.

    Low: 23 °F

    Chance Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 33. North wind 8 to 10 mph.

    High: 33 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 16. North wind around 6 mph.

    Low: 16 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 30.

    High: 30 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow before 1pm. Partly sunny, with a high near 36. Chance of precipitation is 40%.

    High: 36 °F

    Chance Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 26. Calm wind.
Tuesday
A slight chance of snow after 1pm. Increasing clouds, with a high near 38. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of snow before 1am. Mostly cloudy, with a low around 23. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 33. North wind 8 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 16. North wind around 6 mph.
Thursday
Sunny, with a high near 30.
Thursday Night
Partly cloudy, with a low around 15.
Friday
A chance of snow before 1pm. Partly sunny, with a high near 36. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 18.
Saturday
Sunny, with a high near 28.
Saturday Night
Partly cloudy, with a low around 13.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 11.
Monday
Mostly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Herndon VA
 38.97°N 77.38°W (Elev. 354 ft)
Last Update:
12:53 am EST Feb 3, 2026
Forecast Valid:
1am EST Feb 3, 2026-6pm EST Feb 9, 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