Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Mostly Cloudy

21°F

-6°C

Humidity 47%
Wind Speed NW 13 G 21 mph
Barometer 30.19 in (1024.9 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 29 Jan 3:56 pm EST
Extended Forecast for

Olney MD

Cold Weather Advisory January 29, 07:00pm until January 30, 11:00am
Click here for hazard details and duration
Cold Weather Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 3. Wind chill values as low as -5. Northwest wind 5 to 8 mph.

    Low: 3 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 19. Wind chill values as low as -4. Northwest wind 3 to 6 mph.

    High: 19 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 5. Wind chill values as low as -4. Calm wind becoming north around 6 mph after midnight.

    Low: 5 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow after 1pm.  Mostly cloudy, with a high near 18. Wind chill values as low as -6. North wind 6 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 20%.

    High: 18 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A chance of snow.  Mostly cloudy, with a low around 9. North wind 10 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 30%.

    Low: 9 °F

    Chance Snow

  • Sunday

    Sunday: Partly sunny, with a high near 22. Blustery.

    High: 22 °F

    Partly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 30.

    High: 30 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 3. Wind chill values as low as -5. Northwest wind 5 to 8 mph.
Friday
Mostly sunny, with a high near 19. Wind chill values as low as -4. Northwest wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 5. Wind chill values as low as -4. Calm wind becoming north around 6 mph after midnight.
Saturday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 18. Wind chill values as low as -6. North wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 9. North wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 22. Blustery.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 31.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Thursday
A chance of snow. Partly sunny, with a high near 32. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Olney MD
 39.16°N 77.06°W (Elev. 486 ft)
12:54 pm EST Jan 29, 2026
4pm EST Jan 29, 2026-6pm EST Feb 5, 2026
 
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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