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

Late January Extreme Cold; Watching for Another East Coast Storm Threat This Weekend

Well below normal temperatures will continue for the eastern half of the Lower 48 this week. Another blast of arctic air will spread from the Plains through the East/Southeast Friday into Saturday with more record lows expected even into Florida. Forecasts are being monitored for increasing potential of another significant winter storm to impact the eastern United States this coming weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

12°F

-11°C

Humidity 56%
Wind Speed S 5 mph
Barometer 30.20 in (1023.2 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 27 Jan 8:52 am EST
Extended Forecast for

Catharpin VA

Cold Weather Advisory January 27, 07:00pm until January 28, 11:00am
Cold Weather Advisory January 27, 09:52am until January 27, 11:00am
Click here for hazard details and duration
Cold Weather Advisory
...
  •  
    Cold Weather Advisory January 27, 09:52am until January 27, 11:00am

    NOW until 11:00am Tue

    Cold Weather Advisory

  • Today

    High: 28 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 6. Wind chill values as low as -4. Northwest wind around 6 mph.

    Low: 6 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 23. Wind chill values as low as -4. Northwest wind 3 to 7 mph.

    High: 23 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 3. Light northwest wind.

    Low: 3 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 24. Light west wind increasing to 5 to 9 mph in the morning.

    High: 24 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 0.

    Low: 0 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 19.

    High: 19 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

Detailed Forecast

Today
Increasing clouds, with a high near 28. Wind chill values as low as -4. Light south wind increasing to 5 to 9 mph in the morning.
Tonight
Partly cloudy, with a low around 6. Wind chill values as low as -4. Northwest wind around 6 mph.
Wednesday
Increasing clouds, with a high near 23. Wind chill values as low as -4. Northwest wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 3. Light northwest wind.
Thursday
Mostly sunny, with a high near 24. Light west wind increasing to 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 0.
Friday
Mostly sunny, with a high near 19.
Friday Night
Partly cloudy, with a low around 2.
Saturday
A chance of snow before 1pm. Mostly cloudy, with a high near 18. Chance of precipitation is 30%.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 10. Chance of precipitation is 30%.
Sunday
Mostly cloudy, with a high near 24. Blustery.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Catharpin VA
 38.86°N 77.58°W (Elev. 295 ft)
Last Update:
6:02 am EST Jan 27, 2026
Forecast Valid:
9am EST Jan 27, 2026-6pm EST Feb 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation