Saint Peter, IL Warnings, Watches and Advisories

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NWS Active Alerts for IL - Map View

State: IL Alerts: 3 Updated: Sep 15, 2026 6:48am CDT

Beach Hazards Statement

Area
Lake; Northern Cook; Central Cook

Beach Hazards Statement issued September 15 at 6:31AM CDT until September 15 at 7:00AM CDT by NWS Chicago IL

Waves will continue to subside this morning.

Severity
Moderate

Certainty
Likely

Urgency
Expected

Published
September 15th, 2026 06:31:00 am CDT

Effective
September 15th, 2026 06:31:00 am CDT

Expires
September 15th, 2026 07:45:00 am CDT

Heat Advisory

Area
Bond; Clinton; Marion; Washington; Randolph; Madison; St. Clair; Monroe; Moniteau; Cole; Osage; Gasconade; Warren; St. Charles; Franklin; St. Louis; St. Louis City; Jefferson; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds

Heat Advisory issued September 15 at 1:44AM CDT until September 15 at 7:00PM CDT by NWS St Louis MO

* WHAT...Heat index values up to 109 expected. * WHERE...Portions of south central and southwest Illinois and central, east central, and southeast Missouri. * WHEN...From 11 AM this morning to 7 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Severity
Moderate

Certainty
Likely

Urgency
Expected

Published
September 15th, 2026 01:44:00 am CDT

Effective
September 15th, 2026 01:44:00 am CDT

Expires
September 15th, 2026 04:45:00 pm CDT

Heat Advisory

Area
Jefferson; Wayne; Edwards; Wabash; Perry; Franklin; Hamilton; White; Jackson; Williamson; Saline; Gallatin; Union; Johnson; Pope; Hardin; Alexander; Pulaski; Massac; Gibson; Pike; Posey; Vanderburgh; Warrick; Spencer; Ballard; McCracken; Livingston; Marshall; Calloway; Crittenden; Lyon; Trigg; Caldwell; Union; Webster; Hopkins; Christian; Henderson; Daviess; McLean; Muhlenberg; Todd; Perry; Bollinger; Cape Girardeau; Wayne

Heat Advisory issued September 14 at 10:23PM CDT until September 16 at 7:00PM CDT by NWS Paducah KY

* WHAT...Daily peak heat index values around 105 degrees. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...From 11 AM CDT /noon EDT/ Tuesday to 7 PM CDT /8 PM EDT/ Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Severity
Moderate

Certainty
Likely

Urgency
Expected

Published
September 14th, 2026 10:23:00 pm CDT

Effective
September 14th, 2026 10:23:00 pm CDT

Expires
September 15th, 2026 05:00:00 pm CDT

SAFETY and DATA MESSAGE

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Saint Peter.

Use the Radar Maps link provided to understand the trajectory of a storm.

Radar Maps

Disclaimer

This severe weather alerts report is valid for ZIP code 62880, accurately covering the area of Saint Peter, IL.