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Severe · Extreme Heat WarningActive alert

Extreme Heat Warning issued September 5 at 6:08AM CDT until September 5

Affecting 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; Effingham; Jasper; Crawford; Clay; Richland; Lawrence

In effect until: Sep 5, 2026, 9:00 PM

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; Effingham; Jasper; Crawford; Clay; Richland; Lawrence

Likely impact; effects through 9:00 PM.

Stay in air conditioning if possible. Drink water regularly and check on elderly neighbors.

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Read the original bulletin (official text)
* WHAT...Dangerously hot conditions with heat index values up to 106
degrees.

* WHERE...All of of central, east central, southeast, and west
central Illinois.

* WHEN...Until 7 PM CDT this evening.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™