(11:00PM – Thursday, January 29th, 2026) Lake effect snow expected this weekend… ⏰Timing…•Friday Morning – Saturday Evening, January 30-31st. 📍Location…•Northern & Central Illinois. ❄️Hazards…•Snowfall accumulation will greatly very over short distances. Snowfall accumulation will range from a dusting to 2″ well inland across portions of Northern and Central Illinois, to…
(7:30PM – Monday, January 25th, 2026) Chilly conditions across the state for tonight/Tuesday morning… ⏱️Timing…•Tonight/Tuesday Morning, January 26/27th 📍Location…•Eastern & Southern Illinois 🥶Hazards…•Low temperatures will range from 4 to -7 across Eastern and Central Illinois.•Wind chills values of -10 to -24 will be common across Eastern and Central Illinois. ✔️Summary…•Another…
(9:00PM – Sunday, January 25th, 2026) Cold conditions resurge across the state tonight/Monday morning… ⏱️Timing…•Tonight/Monday Morning, January 25/26th 📍Location…•All of Illinois. 🥶Hazards…•Low temperatures will range from 1 to -12 across Illinois.•Wind chills values of -13 to -27 will be common across Illinois. ✔️Summary…•As cold conditions resurge in the wake of…
(11:45AM – Saturday, January 24th, 2026) Major winter storm to affect the state for the duration of the weekend… ❗Update…•With this update, we have adjusted all snowfall amount corridors slightly northward. Otherwise, no significant changes were needed. ⏰Timing…•This Morning – Sunday Evening, January 24-25th. 📍Location…•Much of Illinois. ❄️Hazards…•Widespread snowfall accumulation…
(11:45PM – Friday, January 23rd, 2026) Weekend major winter storm on the way… ❗Update…•With this update, other than some minor snowfall gradient changes, no noteworthy changes were needed this forecast cycle. ⏰Timing…•Saturday Morning – Sunday Evening, January 24-25th. 📍Location…•Much of Illinois. ❄️Hazards…•Widespread snowfall accumulation will be likely across the state….
(9:00PM – Friday, January 23rd, 2026) Cold conditions continue tonight/Saturday morning… ⏱️Timing…•Tonight/Saturday Morning, January 23/24th 📍Location…•Northern & Central Illinois. 🥶Hazards…•Low temperatures will range from 0 to -17 across much Northern and Central Illinois.•Wind chills values of -15 to -30 will be common across much of Northern and Central Illinois. ✔️Summary…•Cold…
(11:45AM – Friday, January 23rd, 2026) Major winter storm to bring significant snowfall to the state this weekend… ❗Update…•With this update, we have increased expected snowfall totals across the southern half of the state, with confidence growing in accumulations as we approach the event. ⏰Timing…•Saturday Morning – Sunday Evening, January…
(12:45AM – Friday, January 23rd, 2026) Major winter storm to impact the state this weekend… ⏰Timing…•Saturday Morning – Sunday Evening, January 24-25th. 📍Location…•Much of Illinois. ❄️Hazards…•Widespread snowfall accumulation will be possible across the state, with highest amounts across Central and Southern Illinois, and lowest amounts across Northern Illinois. Highest snowfall…
(9:00PM – Thursday, January 22nd, 2026) Bitter Arctic cold conditions begin in earnest tonight/Friday morning… ⏱️Timing…•Thursday Night/Friday Morning, January 22/23rd 📍Location…•Northern & Central Illinois. 🥶Hazards…•Low temperatures tonight/Friday morning will range from 5 to -10 across much of Central Illinois, to -5 to -20 across Northern Illinois. Wind chills values of…
(8:00PM – Wednesday, January 21st, 2026) A period of bitter Arctic cold is on the way from late this week through early next week… ⏰Timing…•Thursday night thru early next week. (January 22nd-27th) 📍Location…•All of Illinois. 🥶Hazards…•Bitterly cold wind chills at levels well below zero will be likely on numerous occasions…
