Alert archive / Illinois / Severe Thunderstorm Warnings / 2026

Severe Thunderstorm Warnings in Illinois, July 2026

137 severe thunderstorm warnings in July 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in July 2026. Tap one for its archive.

Severe Thunderstorm Warnings: 137
Busiest day: July 27, 202643 severe thunderstorm warnings

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Jul 2, 7:25 PM CDT	Severe Thunderstorm Warning	PAH	Massac, Pope	50 min
Jul 2, 9:44 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage	46 min
Jul 2, 10:26 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage	64 min
Jul 2, 11:15 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Kane, Kendall	60 min
Jul 3, 10:56 AM CDT	Severe Thunderstorm Warning	LOT	Ogle	64 min
Jul 3, 10:57 AM CDT	Severe Thunderstorm Warning	DVN	Carroll, Stephenson	37 min
Jul 3, 11:14 AM CDT	Severe Thunderstorm Warning	LOT	Boone, Winnebago	61 min
Jul 3, 12:21 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, LaSalle, Lee	54 min
Jul 3, 12:41 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	26 min
Jul 3, 12:42 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Kane	63 min
Jul 3, 12:44 PM CDT	Severe Thunderstorm Warning	LOT	Kendall	46 min
Jul 3, 1:05 PM CDT	Severe Thunderstorm Warning	LOT	Cook	40 min
Jul 3, 2:02 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kendall, Will	43 min
Jul 3, 2:27 PM CDT	Severe Thunderstorm Warning	LOT	Cook	48 min
Jul 3, 2:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Will	59 min
Jul 3, 4:26 PM CDT	Severe Thunderstorm Warning	LOT	Will	49 min
Jul 3, 5:19 PM CDT	Severe Thunderstorm Warning	DVN	Jo Daviess, Stephenson	56 min
Jul 3, 5:21 PM CDT	Severe Thunderstorm Warning	DVN	Bureau	28 min
Jul 3, 6:11 PM CDT	Severe Thunderstorm Warning	ILX	Clay	50 min
Jul 3, 6:25 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess	50 min
Jul 3, 6:31 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	44 min
Jul 3, 6:41 PM CDT	Severe Thunderstorm Warning	LSX	Washington	35 min
Jul 3, 6:51 PM CDT	Severe Thunderstorm Warning	LOT	Ogle, Winnebago	54 min
Jul 3, 7:04 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess, Stephenson	56 min
Jul 3, 7:06 PM CDT	Severe Thunderstorm Warning	LOT	Boone, DeKalb, Ogle	39 min
Jul 3, 7:22 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	38 min
Jul 3, 7:23 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	39 min
Jul 3, 7:32 PM CDT	Severe Thunderstorm Warning	DVN	Rock Island	58 min
Jul 3, 7:33 PM CDT	Severe Thunderstorm Warning	LOT	Boone, DeKalb, McHenry	30 min
Jul 3, 7:45 PM CDT	Severe Thunderstorm Warning	LOT	Lee, Ogle	60 min
Jul 3, 7:50 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Massac, Pope	19 min
Jul 3, 8:22 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Kane	53 min
Jul 3, 8:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	DeKalb, Kane, Kendall	49 min
Jul 3, 9:15 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Kane, Will	60 min
Jul 3, 9:31 PM CDT	Severe Thunderstorm Warning	DVN	Henderson	59 min
Jul 3, 10:05 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Will	53 min
Jul 3, 10:33 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	42 min
Jul 3, 11:05 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Menard	40 min
Jul 3, 11:57 PM CDT	Severe Thunderstorm Warning	ILX	Macon, Moultrie, Shelby	40 min
Jul 4, 1:45 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle, Lee	26 min
Jul 4, 1:53 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Kane, McHenry	40 min
Jul 4, 2:16 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan	29 min
Jul 4, 2:27 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	63 min
Jul 4, 2:41 PM CDT	Severe Thunderstorm Warning	LOT	Kane, Kendall	64 min
Jul 4, 3:05 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Woodford	40 min
Jul 4, 3:18 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon	19 min
Jul 4, 3:19 PM CDT	Severe Thunderstorm Warning	LOT	DuPage, Grundy, Kendall, Will	56 min
Jul 4, 3:50 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Will	55 min
Jul 4, 3:59 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Johnson, Pulaski, Union	32 min
Jul 4, 4:06 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Kankakee, Livingston	39 min
Jul 4, 4:41 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas	27 min
Jul 4, 4:42 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph, Saint Clair, Washington	63 min
Jul 4, 5:19 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Perry	41 min
Jul 4, 5:31 PM CDT	Severe Thunderstorm Warning	PAH	Massac	44 min
Jul 5, 3:04 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton, White	41 min
Jul 5, 3:43 PM CDT	Severe Thunderstorm Warning	PAH	White	21 min
Jul 9, 11:48 AM CDT	Severe Thunderstorm Warning	PAH	Alexander, Union	27 min
Jul 9, 1:17 PM CDT	Severe Thunderstorm Warning	PAH	Massac	13 min
Jul 9, 3:00 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery	45 min
Jul 9, 3:01 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Shelby	44 min
Jul 9, 4:17 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wayne	43 min
Jul 9, 4:55 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash	28 min
Jul 9, 5:56 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Woodford	64 min
Jul 9, 6:43 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Alexander	47 min
Jul 9, 7:09 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence, Richland	51 min
Jul 9, 11:08 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Pulaski	52 min
Jul 10, 6:37 PM CDT	Severe Thunderstorm Warning	LSX	Randolph, Washington	38 min
Jul 10, 6:43 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Perry	47 min
Jul 10, 7:20 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Franklin, Jackson, Perry, Williamson	40 min
Jul 10, 7:52 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun	38 min
Jul 10, 7:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Franklin, Jackson, Williamson	28 min
Jul 10, 7:58 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun	47 min
Jul 10, 8:21 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey	39 min
Jul 10, 8:40 PM CDT	Severe Thunderstorm Warning	LSX	Jersey, Madison, Saint Clair	50 min
Jul 10, 8:41 PM CDT	Severe Thunderstorm Warning	PAH	Pope, Saline	37 min
Jul 20, 11:52 AM CDT	Severe Thunderstorm Warning	DVN	Henderson, Henry, Mercer, Rock Island, Warren	53 min
Jul 20, 12:37 PM CDT	Severe Thunderstorm Warning	ILX	Knox	53 min
Jul 20, 8:17 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, McDonough	58 min
Jul 20, 8:33 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Schuyler	57 min
Jul 20, 8:35 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown	40 min
Jul 20, 9:09 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	Cass, Mason, Morgan	50 min
Jul 21, 2:48 PM CDT	Severe Thunderstorm Warning	PAH	Alexander	42 min
Jul 21, 3:25 PM CDT	Severe Thunderstorm Warning	PAH	Alexander	24 min
Jul 26, 4:53 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wayne	33 min
Jul 26, 5:06 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	39 min
Jul 26, 5:13 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash, White	47 min
Jul 26, 5:27 PM CDT	Severe Thunderstorm Warning	ILX	Clay	48 min
Jul 26, 5:39 PM CDT	Severe Thunderstorm Warning	LSX	Marion	24 min
Jul 26, 5:42 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash, White	63 min
Jul 26, 6:27 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton, Wayne, White	48 min
Jul 26, 6:55 PM CDT	Severe Thunderstorm Warning	PAH	Gallatin, Hamilton, Saline, White	50 min
Jul 26, 7:19 PM CDT	Severe Thunderstorm Warning Destructive damage threat	PAH	Gallatin, Hardin, Pope, Saline	41 min
Jul 26, 7:47 PM CDT	Severe Thunderstorm Warning Considerable damage threat	PAH	Hardin, Pope	43 min
Jul 26, 8:28 PM CDT	Severe Thunderstorm Warning	PAH	Hardin, Pope, Saline	47 min
Jul 26, 8:57 PM CDT	Severe Thunderstorm Warning	PAH	Pope	48 min
Jul 26, 9:20 PM CDT	Severe Thunderstorm Warning	PAH	Massac, Pope	40 min
Jul 26, 9:46 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	15 min
Jul 26, 10:38 PM CDT	Severe Thunderstorm Warning	PAH	Wabash	52 min
Jul 26, 11:01 PM CDT	Severe Thunderstorm Warning	PAH	Wabash	33 min
Jul 27, 1:58 AM CDT	Severe Thunderstorm Warning	PAH	Gallatin, Hamilton, Saline, White	47 min
Jul 27, 2:23 AM CDT	Severe Thunderstorm Warning	PAH	Hardin	35 min
Jul 27, 3:05 AM CDT	Severe Thunderstorm Warning	PAH	Massac, Pope	20 min
Jul 27, 4:04 AM CDT	Severe Thunderstorm Warning	PAH	Wayne	41 min
Jul 27, 4:12 AM CDT	Severe Thunderstorm Warning	ILX	Clay	33 min
Jul 27, 5:01 AM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper	44 min
Jul 27, 7:11 AM CDT	Severe Thunderstorm Warning	ILX	Cumberland	14 min
Jul 27, 10:57 AM CDT	Severe Thunderstorm Warning	LOT	Cook, Kane, Lake, McHenry	78 min
Jul 27, 11:09 AM CDT	Severe Thunderstorm Warning	LOT	DuPage	51 min
Jul 27, 11:25 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Lake, McHenry	80 min
Jul 27, 11:39 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Cook, DuPage, Will	81 min
Jul 27, 12:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Cook	33 min
Jul 27, 12:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Cook, Will	75 min
Jul 27, 12:37 PM CDT	Severe Thunderstorm Warning	LOT	Cook	53 min
Jul 27, 12:41 PM CDT	Severe Thunderstorm Warning	LOT	Lake	11 min
Jul 27, 12:49 PM CDT	Severe Thunderstorm Warning Destructive damage threat	LOT	Cook, Will	41 min
Jul 27, 1:01 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Kankakee	74 min
Jul 27, 1:08 PM CDT	Severe Thunderstorm Warning Destructive damage threat	LOT	Kankakee, Will	33 min
Jul 27, 1:28 PM CDT	Severe Thunderstorm Warning	LOT	Cook	20 min
Jul 27, 1:37 PM CDT	Severe Thunderstorm Warning	LOT	Cook	26 min
Jul 27, 3:26 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kendall, Will	64 min
Jul 27, 3:35 PM CDT	Severe Thunderstorm Warning	LOT	Lake	40 min
Jul 27, 3:48 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Grundy, Kankakee, Livingston, Will	57 min
Jul 27, 3:58 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Menard, Sangamon	29 min
Jul 27, 4:08 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage	82 min
Jul 27, 4:32 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Iroquois	73 min
Jul 27, 4:45 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Kankakee	30 min
Jul 27, 4:53 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Will	67 min
Jul 27, 5:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Iroquois	76 min
Jul 27, 5:17 PM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	43 min
Jul 27, 5:28 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage	17 min
Jul 27, 5:45 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	Vermilion	60 min
Jul 27, 6:13 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	62 min
Jul 27, 6:42 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford	48 min
Jul 27, 6:44 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	31 min
Jul 27, 7:03 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford	57 min
Jul 27, 7:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	Crawford	52 min
Jul 27, 7:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	Lawrence	66 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

51 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.