Illinois Storm Chasers

| January 30, 2026

Friday-Saturday, January 30-31st – Lake Effect Snow Event

(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

Illinois Storm Chasers

| January 27, 2026

Extreme Cold Event – Monday Night/Tuesday Morning, January 26/27th Conditions

(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 -

Illinois Storm Chasers

| January 26, 2026

Extreme Cold Event – Sunday Night/Monday Morning, January 25/26th Conditions

(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 acros

Illinois Storm Chasers

| January 24, 2026

Saturday-Sunday, January 24-25th – Major Winter Storm – Update #4

(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

Illinois Storm Chasers

| January 24, 2026

Saturday-Sunday, January 24-25th – Major Winter Storm – Update #3

(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.❄️Haz

Illinois Storm Chasers

| January 24, 2026

Extreme Cold Event – Friday Night/Saturday Morning, January 23/24th Conditions

(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 t

Illinois Storm Chasers

| January 23, 2026

Saturday-Sunday, January 24-25th – Major Winter Storm – Update #2

(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…•Sa

Illinois Storm Chasers

| January 23, 2026

Saturday-Sunday, January 24-25th – Winter Storm

(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 So

Illinois Storm Chasers

| January 23, 2026

Extreme Cold Event – Thursday Night/Friday Morning, January 22/23rd Conditions

(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 Centr

Illinois Storm Chasers

| January 22, 2026

Thursday-Tuesday, January 22-27th – Extreme Cold Event

(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 o

Illinois Storm Chasers

| January 21, 2026

Wednesday-Thursday, January 21-22nd – High Wind Event

(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 Illin

Illinois Storm Chasers

| January 20, 2026

Tuesday-Wednesday, January 20-21st – Snow Event – Update #2

(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

Illinois Storm Chasers

| January 20, 2026

Tuesday-Wednesday, January 20-21st – Snow Event

(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 Nor

Illinois Storm Chasers

| January 18, 2026

Sunday, January 18th – Snow Event

(12:00AM – Sunday, January 18th, 2025) Minor accumulating snowfall on Sunday…⏰Timing…•Sunday Midday – Sunday Night, January 18th.📍Location…•Large Portion Of Illinois.❄️Hazards…•Widespread light snowfall accumulation is expected across roughly the northern half of Illinois. Highest snowfall accumulat

Illinois Storm Chasers

| January 16, 2026

Thursday-Friday, January 15-16th – Snow Event

(5:30PM – Thursday, January 15th, 2025) Minor accumulating snowfall tonight into Friday morning…⏰Timing…•This Evening – Friday Midday, January 15-16th.📍Location…•Large Portion Of Illinois.❄️Hazards…•Widespread light snowfall accumulation is expected across a large portion of Illinois. Highest snowfa

Illinois Storm Chasers

| January 8, 2026

Thursday-Friday, January 8-9th – Severe T’Storm & High Wind Event – Update #4

(11:45AM – Thursday, January 8th, 2025) Severe t’storm threat & a period of high winds expected across the state through early Friday…❗Update…•No changes were needed this forecast cycle, as the going forecast is on track based on the latest guidance and observations.⏰Timing…•Severe T’Storm Threat: T

Illinois Storm Chasers

| January 8, 2026

Thursday-Friday, January 8-9th – Severe T’Storm & High Wind Event – Update #3

(11:15PM – Wednesday, January 7th, 2025) Severe t’storm potential and high winds on track for Thursday into Friday across the state… #ILWx❗Update…•With this update, we have increased peak wind gusts across the state to upwards of 35-50MPH, with the period of high winds expected across the state from

Illinois Storm Chasers

| January 7, 2026

Thursday-Friday, January 8-9th – Severe T’Storm & High Wind Event – Update #2

(11:45AM – Wednesday, January 7th, 2025) Storm system to bring severe t’storm chances & high winds to the state from Thursday into Friday…❗Update…•No changes were needed this forecast cycle, as the going forecast is on track based on the latest guidance.⏰Timing…•Severe T’Storm Threat: Thursday after

Illinois Storm Chasers

| January 7, 2026

Thursday-Friday, January 8-9th – Severe T’Storm & High Wind Event

(11:15PM – Tuesday, January 6th, 2025) Severe t’storm chances & high winds return for Thursday into Friday…⏰Timing…•Severe T’Storm Threat: Thursday afternoon – Friday Morning, January 8-9th.•High Winds: Thursday midday – Friday morning, January 8-9th.📍Location…•Severe T’Storm Threat: Central & South

Illinois Storm Chasers

| January 1, 2026

New Year’s Day 2025 Weather Forecast

New Year’s Day Forecast 🥳🎉Illinois is starting the New Year with a forecast that says, “I’m not exciting, but I am reliable.” Consider it weather with good intentions.🌡️ Temperatures•Northern Illinois: 10’s and 20’s —Brisk enough to remind you that winter didn’t make a New Year’s resolution to go ea

Illinois Storm Chasers

| December 31, 2025

New Year’s Eve 2025 Weather Forecast

New Year’s Eve Weather Forecast 🎆Illinois will be ringing in the New Year with rapidly changing temperatures and wintry weather, especially across the northern half of the state.Across Northern Illinois, temperatures will be free-falling faster than your New Year’s resolutions, especially late this

Illinois Storm Chasers

| December 29, 2025

Sunday-Monday, December 28-29th – Multi-Faceted Storm System – Update #5

(11:00PM – Sunday, December 27th, 2025) A potent storm system will continue to bring impacts to the state into Monday, in the form of high winds and accumulating snow…❗Update…•The severe t’storm threat has ended across affected the state as of tonight.•With this update, we have slightly adjusted exp

Illinois Storm Chasers

| December 28, 2025

Sunday-Monday, December 28-29th – Multi-Faceted Storm System – Update #4

(11:30AM – Sunday, December 27th, 2025) A potent storm system bringing significant impacts to the state to end the weekend/begin the week…❗Update…•With this update, we have increased severe t’storm probabilities across a large chunk of the state. Confidence in higher coverage severe t’storm potentia

Illinois Storm Chasers

| December 28, 2025

Sunday-Monday, December 28-29th – Multi-Faceted Storm System – Update #3

(11:45PM – Saturday, December 27th, 2025) Impacts in the form of severe t’storms, high winds, and snow expected across the state on Sunday and Monday…❗Update…•With this update, little in the way of changes were needed to going forecasts.⏰Timing…•Severe T’Storm Threat: Sunday Morning – Sunday Evening