Extreme Heat Warning for Iowa, Illinois, Missouri Until Friday
This alert is no longer in effect.
NOAA issued it on September 2, 2026, 12 days ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Quad Cities IA IL issued an Extreme Heat Warning for portions of east central and southeast Iowa, west central and northwest Illinois, and northeast Missouri with heat index values up to 105.
This weather record, quickly
- Record type
- Extreme Heat Warning
- Affected area
- Eastern Iowa, Western Illinois, Northeast Missouri
- Issued
- September 2, 2026
- Issuing authority
- NWS Quad Cities IA IL
Heat notices are time-bound and location-specific. Confirm the current forecast and local public-health guidance before relying on this archived record.
Record status: historical. It was issued 12 days ago; use the issuing agency's live warning service for current conditions in Eastern Iowa, Western Illinois, Northeast Missouri.
Alert Details
Extreme Heat Warning issued by NWS Quad Cities IA IL. Effective from September 2, 2026 at 2:02 AM CDT until September 4, 2026 at 7:00 PM CDT.
Affected Areas
Portions of north central, northwest, and west central Illinois, east central and southeast Iowa, and northeast Missouri. Specific counties include Johnson, Cedar, Muscatine, Scott, Keokuk, Washington, Louisa, Jefferson, Henry, Des Moines, Van Buren, Lee in Iowa; Rock Island, Henry, Bureau, Putnam, Mercer, Henderson, Warren, Hancock, McDonough in Illinois; and Scotland, Clark in Missouri.
What You Should Do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Expected Conditions
Heat index values up to 105.
Timeline
Alert in effect from September 2 at 2:02 AM CDT through September 4 at 7:00 PM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Elsewhere in the country: similar length or severity timing 8
Beyond this NWS weather alert's own category, Areazine surfaces two nationwide peer sets: length-matched and severity/date-matched notices from elsewhere in the archive, distinct from the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,076 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 2, 2026.
Common Questions
Common questions about this NWS weather alert.