A dangerous combination of heat and humidity overspread the region beginning on June 28th and persisted through July 1st. There were 37 heat related illnesses reported in St. Louis County & the City of St. Louis during this event.

Excessive Heat in BOND, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in MADISON, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in ST. CLAIR, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High temperatures were in the mid 90s with heat index values 107 or higher each day.

Excessive Heat in MONROE, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in CLINTON, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in RANDOLPH, ILLINOIS
From 29-JUN-18 11:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High temperatures were in the mid 90s with heat index values 107 or higher each day.

Excessive Heat in WASHINGTON, ILLINOIS
From 29-JUN-18 11:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in CALHOUN, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in JERSEY, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in MACOUPIN, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in MONTGOMERY, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in FAYETTE, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in GREENE, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.

Excessive Heat in MARION, ILLINOIS
From 28-JUN-18 15:00:00 to 30-JUN-18 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High temperatures were in the mid 90s with heat index values 105 or higher each day.