Weather Center: Illinois

Current alerts

2 freeze warnings touch Illinois. 2 freeze warnings (touching Illinois)

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NWS alerts checked 03:28Z · Data: NOAA/NWS

Sources & update times

SPC Day 1 outlook issued 00:50Z · Data: NOAA/SPC

SPC Day 2 outlook issued 16 Oct 17:24Z · Data: NOAA/SPC

SPC Day 3 outlook issued 16 Oct 19:22Z · Data: NOAA/SPC

SPC discussions checked 03:28Z · Data: NOAA/SPC

SPC storm reports checked 03:25Z · Data: NOAA/SPC

WPC Day 1 outlook issued 00:56Z · Data: NOAA/WPC

WPC Day 2 outlook issued 16 Oct 19:17Z · Data: NOAA/WPC

WPC Day 3 outlook issued 16 Oct 19:17Z · Data: NOAA/WPC

Each feed is judged on its own clock. The masthead’s reading is the site’s publishing health, which is a different thing: a publishing delay does not make a freshly read warning stale, and a fresh check does not make an old outlook newly issued.

NWS warnings / MRMS selected rainfall: feeds current

NWS warnings: Feed current; checked 03:28Z.

MRMS selected rainfall: Feed current; checked 03:25Z.

Checked means retrieved, not newly issued. Each graphic retains its issue, observation, initialization or valid time. Site publishing status is separate.

Hazard & forecast product

Rain in the past 24 hours, MRMS radar estimate

Source: NOAA MRMS

Rain that fell: MRMS radar estimate, 24 hours, in inches

0.01 to 0.1 in
0.1 to 0.25 in
0.25 to 0.5 in
0.5 to 0.75 in
0.75 to 1 in
1 to 1.5 in highest in the state
1.5 to 2 in
2 to 3 in
3 to 4 in
4 to 6 in
6 to 8 in
8 to 10 in
10 in or more
No radar estimate

In force now

Freeze Warning 2

MRMS radar estimate of the rain that fell, the 24 hours 16 Oct 03:00Z to 03:00Z · Data: NOAA/MRMS. A measurement of the past, from radar alone: not a forecast, and not corrected to rain gauges. Warnings and watches are as of 03:28Z (now), not for the hours the rain fell in.

Everything on the map, as a list

Rain that fell in the 24 hours to 03:00Z: up to 6 to 8 in anywhere on the map, by radar estimate
Freeze Warning: Winnebago; Boone; McHenry; Ogle; Lee; De Kalb; Kane, until 13:00Z
Freeze Warning: Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Iowa; Johnson; Cedar; Clinton; Muscatine; Scott; Keokuk; Washington; Jefferson; Jo Daviess; Stephenson; Carroll; Whiteside; Rock Island, until 14:00Z
Outside Illinois, for context: Freeze Warning: Midland; Bay; Saginaw; Tuscola; Shiawassee; Genesee; Lapeer, until 12:00Z
Outside Illinois, for context: Freeze Warning: Oceana; Newaygo; Mecosta; Isabella; Muskegon; Montcalm; Gratiot; Ottawa; Kent; Ionia; Clinton, until 12:00Z
Outside Illinois, for context: Freeze Warning: Mitchell; Howard; Winneshiek; Allamakee; Floyd; Chickasaw; Fayette; Clayton; Wabasha; Dodge; Olmsted; Winona; Mower; Fillmore; Houston; Taylor; Clark; Buffalo; Trempealeau; Jackson; La Crosse; Monroe; Juneau; Adams; Vernon; Crawford; Richland; Grant, until 14:00Z
Outside Illinois, for context: Freeze Warning: Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose, until 14:00Z
Outside Illinois, for context: Freeze Warning: Atchison; Doniphan; Atchison; Nodaway; Worth; Gentry; Harrison; Mercer; Putnam; Holt; Andrew; De Kalb; Daviess; Grundy; Sullivan; Buchanan, until 14:00Z
Outside Illinois, for context: Freeze Warning: Lyon; Sioux; Plymouth; Woodbury; Lincoln; Lyon; Murray; Pipestone; Rock; Dixon; Dakota; Kingsbury; Brookings; Miner; Lake; Moody; Hanson; McCook; Minnehaha; Hutchinson; Turner; Lincoln; Bon Homme; Yankton; Clay; Union; Osceola; Dickinson; O'Brien; Clay; Cherokee; Buena Vista; Ida; Cottonwood; Nobles; Jackson, until 14:00Z
Outside Illinois, for context: Freeze Warning: Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth, until 14:00Z
Outside Illinois, for context: Freeze Warning: Hennepin; Ramsey; Douglas; Todd; Morrison; Mille Lacs; Kanabec; Stevens; Pope; Stearns; Benton; Sherburne; Isanti; Chisago; Lac Qui Parle; Swift; Chippewa; Kandiyohi; Meeker; Wright; Anoka; Washington; Yellow Medicine; Renville; McLeod; Sibley; Carver; Scott; Dakota; Redwood; Brown; Nicollet; Le Sueur; Rice; Goodhue; Watonwan; Blue Earth; Waseca; Steele; Martin; Faribault; Freeborn; Polk; Barron; Rusk; St. Croix; Pierce; Dunn; Pepin; Chippewa; Eau Claire, until 14:00Z
Outside Illinois, for context: Freeze Warning: Monona; Harrison; Shelby; Pottawattamie; Mills; Montgomery; Fremont; Page; Knox; Cedar; Thurston; Antelope; Pierce; Wayne; Boone; Madison; Stanton; Cuming; Burt; Platte; Colfax; Dodge; Washington; Butler; Saunders; Douglas; Sarpy; Seward; Lancaster; Cass; Otoe; Saline; Jefferson; Gage; Johnson; Nemaha; Pawnee; Richardson, until 14:00Z
Outside Illinois, for context: Freeze Warning: Republic; Washington; Marshall; Nemaha; Brown; Cloud; Clay; Riley; Pottawatomie; Jackson; Ottawa; Dickinson; Geary, until 14:00Z

Rain in the past 24 hours for Illinois

MRMS radar estimate · the past, not a forecast

Most anywhere in Illinois: 1 to 1.5 in

MRMS estimates 1 to 1.5 in fell at the most, somewhere in the state in the 24 hours to 03:00Z.

The highest cell anywhere in the state, from its outline; not every point in it.

When: 16 Oct 03:00Z to 03:00Z: the 24 hours MRMS summed. Written 03:07Z.
Limits: Radar alone, not corrected to rain gauges: it can be too high or too low, most far from a radar, in mountains, and where hail or melting snow brightens the echo. It says nothing of what will fall, and is not a flood warning.

Forecast details

NOAA’s Multi-Radar Multi-Sensor system (MRMS) mosaics every radar into one estimate of the rain that fell, a grid about 1 km across, which this page samples every 0.05°, about 5 km. This is its radar-only estimate, written every hour. River Forecast Centers make a slower estimate corrected to rain gauges; this is not that. MRMS products.

Coming days · Illinois

2026-10-17Severe storms: No severe area outlinedFlash flooding: No excessive-rainfall area outlined 2026-10-17Severe storms: No severe area outlinedFlash flooding: No excessive-rainfall area outlined 2026-10-18Severe storms: No severe area outlinedFlash flooding: No excessive-rainfall area outlined

These are daily outlooks, not arrival times. Days 4–8 retain SPC’s predictability and potential-too-low wording in the dated outlook controls.

Severe storms

General thunderstorms at its highest nationally. SPC’s convective outlook, on its own scale.

View severe outlook

Recent reports

Reporting period: 12Z 16 Oct – 12Z 17 Oct

0 tornado · 0 wind · 0 hail in Illinois

Preliminary reports: a count of reports, not of storms. None reported is not proof that nothing happened.

View reports: map, table & download

No watches or mesoscale discussions in Illinois. Watches, discussions and warnings in the Live tracker

Warnings in Illinois

2 warnings touching Illinois

2 warnings touch Illinois, most urgent first. A warning across a state line is counted here and in the other state.

NWS alerts checked 03:28Z · Data: NOAA/NWS

Since 02:29Z: no change in the warnings.

Warnings 2

Freeze Winnebago; Boone; McHenry; Ogle; Lee; De Kalb; Kane until 13:00Z Track: Freeze Warning, Winnebago; Boone; McHenry; Ogle; Lee; De Kalb; Kane
Freeze Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Iowa; Johnson; Cedar; Clinton; Muscatine; Scott; Keokuk; Washington; Jefferson; Jo Daviess; Stephenson; Carroll; Whiteside; Rock Island until 14:00Z crosses Illinois and Iowa Track: Freeze Warning, Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Iowa; Johnson; Cedar; Clinton; Muscatine; Scott; Keokuk; Washington; Jefferson; Jo Daviess; Stephenson; Carroll; Whiteside; Rock Island

All 2 warnings touching Illinois, with their full text, in the Live tracker

56 warnings elsewhere in the country: the national list. Track Illinois live

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.

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