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

Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

14°F

-10°C

Humidity 58%
Wind Speed Calm
Barometer 30.10 in (1021.7 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 28 Jan 9:56 pm EST
Extended Forecast for

Dayton MD

Cold Weather Advisory January 28, 10:35pm until January 29, 11:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 28, 10:35pm until January 29, 11:00am

    NOW until 11:00am Thu

    Cold Weather Advisory

  • Tonight

    Low: 5 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 20. Wind chill values as low as -7. West wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 20 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 3. Wind chill values as low as -5. Northwest wind 5 to 7 mph.

    Low: 3 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 19. Wind chill values as low as -6. Northwest wind around 6 mph.

    High: 19 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 4. Calm wind becoming north around 6 mph after midnight.

    Low: 4 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 17. Chance of precipitation is 30%.

    High: 17 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 10. Chance of precipitation is 40%.

    Low: 10 °F

    Chance Snow

  • Sunday

    Sunday: Partly sunny, with a high near 23. Blustery.

    High: 23 °F

    Partly Sunny
    and Blustery

Detailed Forecast

Tonight
Mostly clear, with a low around 5. Wind chill values as low as -6. West wind around 6 mph.
Thursday
Sunny, with a high near 20. Wind chill values as low as -7. West wind 7 to 13 mph, with gusts as high as 21 mph.
Thursday Night
Mostly clear, with a low around 3. Wind chill values as low as -5. Northwest wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 19. Wind chill values as low as -6. Northwest wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 4. Calm wind becoming north around 6 mph after midnight.
Saturday
A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 17. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 10. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 23. Blustery.
Sunday Night
Partly cloudy, with a low around 13. Blustery.
Monday
Sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 16.
Wednesday
Mostly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton MD
 39.24°N 76.99°W (Elev. 568 ft)
Last Update:
9:53 pm EST Jan 28, 2026
Forecast Valid:
10pm EST Jan 28, 2026-6pm EST Feb 4, 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