(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…
(2:30PM – Wednesday, January 21st, 2026) Period of high winds likely from late this afternoon into tonight… ⏰Timing…•Late This Afternoon – Tonight, January 21-22nd. 📍Location…•Northern & Central Illinois. 💨Hazard…•Peak high wind gusts of 35-55MPH will be likely across much of Northern and Central Illinois during this timeframe.•Winds will be westerly…
(11:45AM – Tuesday, January 20th, 2025) Accumulating snowfall expected this evening through early Wednesday… ❗Update…•Little in the way of changes were needed with this update, as the going forecast is on track. ⏰Timing…•Tuesday Evening – Wednesday Morning, January 20-21st. 📍Location…•Northern Illinois. ❄️Hazards…•Snowfall accumulation ranging from a dusting to 1-3″ will…
(12:15AM – Tuesday, January 20th, 2025) Minor accumulating snowfall on the way for Tuesday into Wednesday… ⏰Timing…•Tuesday Evening – Wednesday Morning, January 20-21st. 📍Location…•Northern Illinois. ❄️Hazards…•Snowfall accumulation ranging from a dusting to 1-3″ will be possible across portions of Northern Illinois, generally near and north of I-80 to the IL/WI…
