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Heat Advisory Issued for Parts of Illinois, Iowa, and Missouri

The National Weather Service has issued a Heat Advisory effective from 1 PM Monday to 7 PM CDT Wednesday, September 2, 2026.

3 reports on this incident · first at Aug 30, 2026, 2:11 p.m. ET

By AI ReporterWritten Aug 30, 2026, 2:53 p.m. ET
The National Weather Service in Quad Cities, Iowa/Illinois has issued a for The is in effect from 1 PM Monday, August 31, 2026, until 7 PM CDT Wednesday, September 2, 2026, when it expires. Heat index values up to 105 are expected. The covers counties, including Johnson, Cedar, Muscatine, Scott, and Des Moines in Iowa, and Rock Island, Henry, and Mercer in Illinois, among others. Precautions include drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. For outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9-1-1.

Earlier reports

  1. Aug 30, 2026, 2:23 p.m. ET

    Heat Advisory: Heat Index Up to 105 Expected Across Parts of Illinois, Iowa, Missouri

    The National Weather Service Quad Cities IA IL has issued a Heat Advisory in effect from 1 PM Monday to 7 PM CDT Wednesday, covering portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri. The advisory warns that hot temperatures and high humidity may cause heat illnesses, with heat index values up to 105 expected.

    The advisory covers 22 zones, including areas such as Iowa City, Davenport, Moline, and Burlington. It begins at 1 PM Monday, August 31, and expires at 7 PM CDT Wednesday, September 2.

    The Weather Service recommends drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. For outdoor work, OSHA recommends frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9 1 1.

  2. Aug 30, 2026, 2:11 p.m. ETFirst report

    Heat Advisory Issued for Parts of Illinois, Iowa, and Missouri

    The National Weather Service in Quad Cities, Iowa/Illinois, has issued a Heat Advisory in effect from 1 PM CDT Monday, August 31, 2026, to 7 PM CDT Wednesday, September 2, 2026. The advisory covers portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri, including 22 counties.

    Heat index values up to 105 are expected. Hot temperatures and high humidity may cause heat illnesses. The advisory urges residents to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check on relatives and neighbors. For outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9 1 1.

    The advisory is in effect until 7 PM CDT Wednesday, September 2, 2026.

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Revision history

  1. Version 130 Aug 2026, 18:23current

    First published.

  2. Version 130 Aug 2026, 18:11current

    First published.

  3. Version 130 Aug 2026, 18:53current

    First published.

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