Heat Advisory issued September 16 at 12:20PM CDT until September 17 at 7:00PM CDT by NWS Lincoln IL

**Heat Advisory issued September 16 at 12:20PM CDT until September 17 at 7:00PM CDT by NWS Lincoln IL**

* WHAT...Afternoon heat index values up to 105 expected.

* WHERE...Clay, Crawford, Effingham, Jasper, Lawrence, and Richland Counties.

* WHEN...Until 7 PM CDT Thursday.

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

* ADDITIONAL DETAILS...Not much relief is expected tonight, as the heat index only falls into the mid to upper 70s.

**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.

**Alert Details:**

- **Severity:** Moderate

- **Urgency:** Expected

- **Issued by:** NWS Lincoln IL

- **Effective:** Sep 16, 2026 12:20 PM UTC

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

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