Heat in Illinois, June 26 to 28, 1998

Name: Heat in Illinois, June 26 to 28, 1998
Start: 1998-06-26T03:00
End: 1998-06-28T15:00
Location: Illinois

June 26 to 28, 1998 · NWS ILX · 35 events in 35 counties and zones

A hot and humid airmass built in across Central Illinois late in June. High temperatures on June 26th and 27th climbed into the middle and upper 90s.

Where it happened

Every event with a place to put it; 35 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 1
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 35

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS ILX wrote it up.

A hot and humid airmass built in across Central Illinois late in June. High temperatures on June 26th and 27th climbed into the middle and upper 90s. This combined with the high humidity values produced heat indicies of 105 to 110 degrees at times. Several heat related illnesses were reported in area hospitals due to the heat. One death was reported in Peoria and was confirmed to be heat related as a woman died in her home on June 27th. Also, several highways in the area had sections of roadway buckle due to the excessive heat.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

35 heat. Local standard time, as filed.

Heat, Knox

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Knox forecast zone
Reported by: NEWSPAPER
Coordinates: 40.932, -90.213 (the zone’s center; the record gives no point)

Heat, Cass

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Cass forecast zone
Reported by: NEWSPAPER
Coordinates: 39.974, -90.247 (the zone’s center; the record gives no point)

Heat, Champaign

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Champaign forecast zone
Reported by: NEWSPAPER
Coordinates: 40.140, -88.199 (the zone’s center; the record gives no point)

Heat, Christian

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Christian forecast zone
Reported by: NEWSPAPER
Coordinates: 39.546, -89.277 (the zone’s center; the record gives no point)

Heat, Clark

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Clark forecast zone
Reported by: NEWSPAPER
Coordinates: 39.334, -87.788 (the zone’s center; the record gives no point)

Heat, Clay

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Clay forecast zone
Reported by: NEWSPAPER
Coordinates: 38.754, -88.490 (the zone’s center; the record gives no point)

Heat, Coles

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Coles forecast zone
Reported by: NEWSPAPER
Coordinates: 39.520, -88.222 (the zone’s center; the record gives no point)

Heat, Crawford

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Crawford forecast zone
Reported by: NEWSPAPER
Coordinates: 39.003, -87.760 (the zone’s center; the record gives no point)

Heat, Cumberland

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Cumberland forecast zone
Reported by: NEWSPAPER
Coordinates: 39.273, -88.240 (the zone’s center; the record gives no point)

Heat, De Witt

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: De Witt forecast zone
Reported by: NEWSPAPER
Coordinates: 40.175, -88.904 (the zone’s center; the record gives no point)

Heat, Douglas

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Douglas forecast zone
Reported by: NEWSPAPER
Coordinates: 39.770, -88.217 (the zone’s center; the record gives no point)

Heat, Edgar

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Edgar forecast zone
Reported by: NEWSPAPER
Coordinates: 39.679, -87.746 (the zone’s center; the record gives no point)

Heat, Effingham

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Effingham forecast zone
Reported by: NEWSPAPER
Coordinates: 39.060, -88.590 (the zone’s center; the record gives no point)

Heat, Fulton

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Fulton forecast zone
Reported by: NEWSPAPER
Coordinates: 40.473, -90.207 (the zone’s center; the record gives no point)

Heat, Jasper

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Jasper forecast zone
Reported by: NEWSPAPER
Coordinates: 39.010, -88.154 (the zone’s center; the record gives no point)

Heat, Lawrence

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Lawrence forecast zone
Reported by: NEWSPAPER
Coordinates: 38.720, -87.727 (the zone’s center; the record gives no point)

Heat, Logan

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Logan forecast zone
Reported by: NEWSPAPER
Coordinates: 40.125, -89.367 (the zone’s center; the record gives no point)

Heat, Macon

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Macon forecast zone
Reported by: NEWSPAPER
Coordinates: 39.860, -88.962 (the zone’s center; the record gives no point)

Heat, Marshall

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Marshall forecast zone
Reported by: NEWSPAPER
Coordinates: 41.033, -89.345 (the zone’s center; the record gives no point)

Heat, Mason

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Mason forecast zone
Reported by: NEWSPAPER
Coordinates: 40.240, -89.917 (the zone’s center; the record gives no point)

Heat, McLean

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: McLean forecast zone
Reported by: NEWSPAPER
Coordinates: 40.491, -88.847 (the zone’s center; the record gives no point)

Heat, Menard

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Menard forecast zone
Reported by: NEWSPAPER
Coordinates: 40.027, -89.802 (the zone’s center; the record gives no point)

Heat, Morgan

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Morgan forecast zone
Reported by: NEWSPAPER
Coordinates: 39.716, -90.201 (the zone’s center; the record gives no point)

Heat, Moultrie

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Moultrie forecast zone
Reported by: NEWSPAPER
Coordinates: 39.642, -88.619 (the zone’s center; the record gives no point)

Heat, Peoria

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Peoria forecast zone
Deaths: 1 direct, 0 indirect
Reported by: NEWSPAPER
Coordinates: 40.788, -89.760 (the zone’s center; the record gives no point)

Heat, Piatt

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Piatt forecast zone
Reported by: NEWSPAPER
Coordinates: 40.010, -88.591 (the zone’s center; the record gives no point)

Heat, Richland

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Richland forecast zone
Reported by: NEWSPAPER
Coordinates: 38.712, -88.085 (the zone’s center; the record gives no point)

Heat, Sangamon

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Sangamon forecast zone
Reported by: NEWSPAPER
Coordinates: 39.758, -89.659 (the zone’s center; the record gives no point)

Heat, Schuyler

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Schuyler forecast zone
Reported by: NEWSPAPER
Coordinates: 40.158, -90.615 (the zone’s center; the record gives no point)

Heat, Scott

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Scott forecast zone
Reported by: NEWSPAPER
Coordinates: 39.644, -90.475 (the zone’s center; the record gives no point)

Heat, Shelby

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Shelby forecast zone
Reported by: NEWSPAPER
Coordinates: 39.391, -88.805 (the zone’s center; the record gives no point)

Heat, Stark

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Stark forecast zone
Reported by: NEWSPAPER
Coordinates: 41.093, -89.797 (the zone’s center; the record gives no point)

Heat, Tazewell

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Tazewell forecast zone
Reported by: NEWSPAPER
Coordinates: 40.508, -89.513 (the zone’s center; the record gives no point)

Heat, Vermilion

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Vermilion forecast zone
Reported by: NEWSPAPER
Coordinates: 40.183, -87.733 (the zone’s center; the record gives no point)

Heat, Woodford

When: June 26, 3:00 AM CST to June 28, 3:00 PM CST
Where: Woodford forecast zone
Reported by: NEWSPAPER
Coordinates: 40.788, -89.211 (the zone’s center; the record gives no point)

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

Event	Date	Age	Sex	Where	Kind
Heat, Peoria	1998-06-27	82	Female	Permanent Home	Direct

What these are

Heat: Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Illinois in 1998 Every state in 1998 This day in weather history Warnings in Illinois, June 1998

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5655393, 5655394, 5655395, 5655396, 5655397, 5655398, 5655399, 5655400, 5655401, 5655402, 5655403, 5655404, 5655405, 5655406, 5655407, 5655408, 5655409, 5655410, 5655411, 5655412, 5655413, 5655414, 5655415, 5655416, 5655417, 5655418, 5655419, 5655420, 5655421, 5655422, 5655423, 5655424, 5655425, 5655426, 5655427.