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Hartford, IL Warnings, Watches and Advisories

SAFETY and DATA MESSAGE

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Hartford.

Use the Radar Maps link provided to understand the trajectory of a storm.

NWS Active Alerts for IL - Map View

State: IL Total alerts: 8 Updated: Jan 19, 2026 3:12am CST

Special Weather Statement

Area
Winnebago; Boone; McHenry; Lake; Ogle; Lee; De Kalb; Kane; DuPage; La Salle; Kendall; Grundy; Kankakee; Livingston; Iroquois; Ford; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will; Lake; Porter; Newton; Jasper; Benton
Special Weather Statement issued January 19 at 3:05AM CST by NWS Chicago IL

Narrow bands of snow showers will continue at times through early this morning over portions of northern Illinois and northwest Indiana. Visibility may drop below 1 mile at times directly beneath one of these bands and lead to hazardous travel conditions. Strong west northwest winds gusting up to 40 mph will also lead to blowing and drifting snow, especially in rural and open areas. Use extra caution if traveling early this morning!

Cold Weather Advisory

Area
Winnebago; Boone; McHenry; Lake; Ogle; Lee; De Kalb; Kane; DuPage; La Salle; Kendall; Grundy; Kankakee; Livingston; Iroquois; Ford; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will
Cold Weather Advisory issued January 19 at 3:03AM CST until January 19 at 12:00PM CST by NWS Chicago IL

* WHAT...Very cold wind chills as low as 20 below to 25 below zero. * WHERE...Portions of central, east central, north central, and northeast Illinois. * WHEN...Until noon CST today. * IMPACTS...The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.

Cold Weather Advisory

Area
Muscatine; Scott; Louisa; Jo Daviess; Stephenson; Carroll; Whiteside; Rock Island; Henry; Bureau; Putnam; Mercer
Cold Weather Advisory issued January 19 at 3:02AM CST until January 19 at 12:00PM CST by NWS Quad Cities IA IL

* WHAT...Very cold wind chills as low as 20 to 30 below. * WHERE...Portions of north central and northwest Illinois and east central and southeast Iowa. * WHEN...Until noon CST today. * IMPACTS...The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Cold Weather Advisory

Area
Jefferson; Henry; Des Moines; Van Buren; Lee; Henderson; Warren; Hancock; McDonough; Scotland; Clark
Cold Weather Advisory issued January 19 at 3:02AM CST until January 19 at 12:00PM CST by NWS Quad Cities IA IL

* WHAT...Very cold wind chills as low as 15 to 25 below. * WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...Until noon CST today. * IMPACTS...The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.

Cold Weather Advisory

Area
Effingham; Jasper; Crawford; Clay; Richland; Lawrence
Cold Weather Advisory issued January 19 at 12:57AM CST until January 19 at 12:00PM CST by NWS Lincoln IL

* WHAT...Very cold wind chills as low as 5 to 10 below zero. * WHERE...Clay, Crawford, Effingham, Jasper, Lawrence, and Richland Counties. * WHEN...Until noon CST today. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken.

Cold Weather Advisory

Area
Knox; Stark; Peoria; Marshall; Woodford; Fulton; Tazewell; McLean; Schuyler; Mason; Logan; De Witt; Piatt; Champaign; Vermilion; Cass; Menard; Scott; Morgan; Sangamon; Christian; Macon; Moultrie; Douglas; Coles; Edgar; Shelby; Cumberland; Clark
Cold Weather Advisory issued January 19 at 12:57AM CST until January 19 at 12:00PM CST by NWS Lincoln IL

* WHAT...Very cold wind chills as low as 10 to 20 below zero. * WHERE...Portions of central, east central, and west central Illinois. * WHEN...Until noon CST today. * IMPACTS...The dangerously cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes.

Cold Weather Advisory

Area
Bond; Fayette; Clinton; Marion; Madison
Cold Weather Advisory issued January 18 at 1:36PM CST until January 19 at 10:00AM CST by NWS St Louis MO

* WHAT...Very cold wind chills as low as 11 below expected. * WHERE...Bond IL, Clinton IL, Fayette IL, Marion IL, and Madison IL Counties. * WHEN...From 3 AM to 10 AM CST Monday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia or frostbite if precautions are not taken.

Cold Weather Advisory

Area
Greene; Macoupin; Montgomery; Adams; Brown; Pike; Calhoun; Jersey; Knox; Lewis; Marion
Cold Weather Advisory issued January 18 at 1:36PM CST until January 19 at 10:00AM CST by NWS St Louis MO

* WHAT...Very cold wind chills as low as 15 below expected. * WHERE...Portions of south central, southwest, and west central Illinois and northeast Missouri. * WHEN...From 3 AM to 10 AM CST Monday. * IMPACTS...The dangerously cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken.

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