Heat Advisory issued September 17 at 3:56AM CDT until September 20 at 7:00PM CDT by NWS Paducah KY

**Heat Advisory issued September 17 at 3:56AM CDT until September 20 at 7:00PM CDT by NWS Paducah KY**

* WHAT...Heat index values up to 109 degrees can be expected.

* WHERE...all of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri.

* WHEN...Until 7 PM CDT /8 PM EDT/ Sunday.

* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

**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.

**Alert Details:**

- **Severity:** Moderate

- **Urgency:** Expected

- **Issued by:** NWS Paducah KY

- **Effective:** Sep 17, 2026 3:56 AM UTC

- **Expires:** Sep 17, 2026 4:00 PM UTC

*This alert was automatically distributed from the National Weather Service via the IPAWS All-Hazards Information Feed.*