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

Chillicothe, Chillicothe Agri-Science Center (KCDJ)

Lat: 39.82° N Lon: 93.58° W Elev: 768 ft.

32°F

0°C

Humidity 54%
Wind Speed NW 7 mph
Barometer 30.07 in (1019.4 mb)
Dewpoint 17°F (-8°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 21 Jan 4:51 am CST
Detailed forecast for

Grundy County

Today
Mostly sunny and blustery. Highs in the lower 40s. West winds 10 to 15 mph with gusts up to 30 mph, increasing to 15 to 25 mph with gusts up to 45 mph this afternoon.
Tonight
Mostly clear. Cold with lows around 17. Northwest winds 10 to 15 mph. Gusts up to 35 mph in the evening.
Thursday
Partly sunny in the morning, then becoming mostly cloudy. Highs in the mid 30s. West winds 5 to 10 mph.
Thursday Night
Mostly cloudy. Much colder with lows around 3 below. North winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 18 below after midnight.
Friday
Mostly cloudy. Much colder with highs around 4 above. North winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 22 below.
Friday Night
Cloudy, cold with lows 5 below to 10 below zero. Wind chill values as low as 20 below.
Saturday
Mostly cloudy with a 40 percent chance of snow. Cold with highs 5 to 10 above. Wind chill values as low as 20 below.
Saturday Night
Mostly cloudy. Cold with lows around zero.
Sunday
Mostly sunny. Cold with highs 15 to 20.
Sunday Night And Monday
Mostly clear. Lows around zero. Highs in the lower 20s. Wind chill values as low as 15 below.
Monday Night
Mostly clear in the evening, then becoming partly cloudy. Not as cold with lows around 10 above.
Tuesday
Mostly sunny. Not as cool with highs in the lower 30s.



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317 AM CST Wed Jan 21 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database