Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Overcast

36°F

2°C

Humidity 62%
Wind Speed SW 12 mph
Barometer 29.93 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 21 Jan 4:55 pm CST
Extended Forecast for

Seaton IL

Extreme Cold Watch January 23, 12:00am until January 24, 12:00pm
Wind Advisory until January 22, 12:00am
Click here for hazard details and duration
Extreme Cold Watch
Wind Advisory
  •  
    Wind Advisory until January 22, 12:00am

    NOW until 12:00am Thu

    Wind Advisory

  • This Afternoon

    High: 35 °F

    Slight Chance
    Snow and
    Breezy

  • Tonight

    Tonight: A 20 percent chance of snow before 9pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 15. Breezy, with a northwest wind 15 to 25 mph decreasing to 5 to 15 mph after midnight. Winds could gust as high as 50 mph.

    Low: 15 °F

    Slight Chance
    Snow and
    Breezy then
    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 30. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 30 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -7. Wind chill values as low as -25. Northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: -7 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 1.

    High: 1 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -5.

    Low: -5 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow after noon.  Mostly cloudy and cold, with a high near 8.

    High: 8 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow.  Cloudy, with a low around 2.

    Low: 2 °F

    Chance Snow

Detailed Forecast

This Afternoon
A 20 percent chance of snow. Mostly cloudy, with a high near 35. Breezy, with a southwest wind around 20 mph, with gusts as high as 35 mph.
Tonight
A 20 percent chance of snow before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 15. Breezy, with a northwest wind 15 to 25 mph decreasing to 5 to 15 mph after midnight. Winds could gust as high as 50 mph.
Thursday
Increasing clouds, with a high near 30. West wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around -7. Wind chill values as low as -25. Northwest wind around 15 mph, with gusts as high as 30 mph.
Friday
Partly sunny and cold, with a high near 1.
Friday Night
Mostly cloudy, with a low around -5.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy and cold, with a high near 8.
Saturday Night
A 50 percent chance of snow. Cloudy, with a low around 2.
Sunday
Mostly cloudy, with a high near 16.
Sunday Night
Partly cloudy, with a low around -4.
Monday
Mostly sunny, with a high near 13.
Monday Night
Mostly clear, with a low around 3.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
Mostly cloudy, with a low around 9.
Wednesday
Mostly sunny, with a high near 21.
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ABOUT THIS FORECAST

 
Point Forecast:
Seaton IL
 41.1°N 90.81°W (Elev. 636 ft)
3:16 pm CST Jan 21, 2026
5pm CST Jan 21, 2026-6pm CST Jan 28, 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