Alert archive / Illinois / Cold Weather Advisories

Cold Weather Advisories in Illinois, 2025

37 cold weather advisories in 2025. 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 cold weather advisories reaches back to 2005.

Cold Weather Advisories by county

Each county as a circle sized by its count in 2025. Tap one for its archive.

Cold Weather Advisories: 37
Busiest month: January17 cold weather advisories
Busiest day: February 18, 20255 cold weather advisories

Over time

By month

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
Jan 8, 9:50 AM CST	Cold Weather Advisory	PAH	Edwards, Franklin, Hamilton, Jefferson, Wabash, Wayne and 1 more	22 hr
Jan 17, 2:39 PM CST	Cold Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	45 hr
Jan 18, 2:15 AM CST	Cold Weather Advisory	LOT	Boone, DeKalb, Kane, Lee, McHenry, Ogle and 1 more	57 hr
Jan 18, 1:21 PM CST	Cold Weather Advisory	LOT	Cook, DuPage, Ford, Grundy, Iroquois, Kankakee and 5 more	46 hr
Jan 18, 1:24 PM CST	Cold Weather Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	47 hr
Jan 18, 2:07 PM CST	Cold Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	46 hr
Jan 19, 2:45 AM CST	Cold Weather Advisory	LSX	Bond, Fayette, Macoupin, Marion, Montgomery	31 hr
Jan 19, 2:54 AM CST	Cold Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	32 hr
Jan 19, 12:58 PM CST	Cold Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	59 hr
Jan 20, 1:55 AM CST	Cold Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	37 hr
Jan 20, 2:42 AM CST	Cold Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	24 hr
Jan 20, 2:45 AM CST	Cold Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	36 hr
Jan 20, 12:13 PM CST	Cold Weather Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	27 hr
Jan 21, 2:08 AM CST	Cold Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	28 hr
Jan 21, 2:12 AM CST	Cold Weather Advisory	LSX	Adams, Bond, Brown, Clinton, Fayette, Greene and 7 more	28 hr
Jan 21, 2:52 AM CST	Cold Weather Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	30 hr
Jan 21, 10:23 AM CST	Cold Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	16 hr
Feb 16, 2:21 AM CST	Cold Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Kane, Kendall and 6 more	33 hr
Feb 16, 2:26 AM CST	Cold Weather Advisory	ILX	Knox, Marshall, Stark	31 hr
Feb 16, 2:36 AM CST	Cold Weather Advisory	DVN	Bureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 2 more	32 hr
Feb 17, 2:09 AM CST	Cold Weather Advisory	LSX	Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 2 more	34 hr
Feb 17, 2:22 AM CST	Cold Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Coles, Cumberland and 23 more	34 hr
Feb 17, 2:27 AM CST	Cold Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	34 hr
Feb 17, 2:38 AM CST	Cold Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	33 hr
Feb 18, 1:55 AM CST	Cold Weather Advisory	ILX	Knox, Stark	32 hr
Feb 18, 2:26 AM CST	Cold Weather Advisory	DVN	Bureau, Carroll, Henderson, Henry, Jo Daviess, Mercer and 4 more	34 hr
Feb 18, 3:04 AM CST	Cold Weather Advisory	LOT	Boone, DeKalb, Kane, Lake, Lee, McHenry and 2 more	31 hr
Feb 18, 12:30 PM CST	Cold Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	48 hr
Feb 18, 12:42 PM CST	Cold Weather Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	45 hr
Feb 19, 1:33 AM CST	Cold Weather Advisory	ILX	Cass, Christian, Clark, Clay, Coles, Crawford and 26 more	31 hr
Feb 19, 2:22 AM CST	Cold Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	32 hr
Dec 12, 12:53 PM CST	Cold Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	47 hr
Dec 12, 1:12 PM CST	Cold Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	67 hr
Dec 12, 1:30 PM CST	Cold Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	65 hr
Dec 12, 1:31 PM CST	Cold Weather Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	46 hr
Dec 12, 2:28 PM CST	Cold Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	46 hr
Dec 14, 1:26 PM CST	Cold Weather Advisory	LOT	Ford, Iroquois, Livingston	17 hr

By county

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

62 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2024 2026

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.