Tornadoes and Hail in Illinois, April 21, 1967

Name: Tornadoes and Hail in Illinois, April 21, 1967
Start: 1967-04-21T13:20
End: 1967-04-21T20:50
Location: Illinois

April 21, 1967 · 30 events in 19 counties and zones

19 tornado, 7 thunderstorm wind, 4 hail, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. 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: 58
Injuries: 1,051
Property damage: $56 million
Crop damage: None recorded
Events: 30

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.

Event by event

19 tornado, 7 thunderstorm wind, 4 hail. Local standard time, as filed.

Hail, Sangamon

When: April 21, 1:20 PM CST
Where: Sangamon County
Measured: 1.75 in hail
Coordinates: 39.700, -89.580

Thunderstorm Wind, Sangamon

When: April 21, 1:50 PM CST
Where: Sangamon County
Coordinates: 39.880, -89.500

Hail, Henry

When: April 21, 2:54 PM CST
Where: Henry County
Measured: 1 in hail
Coordinates: 41.580, -89.900

Thunderstorm Wind, Rock Island

When: April 21, 3:20 PM CST
Where: Rock Island County
Measured: 50 kt (58 mph)
Coordinates: 41.500, -90.500

Hail, Rock Island

When: April 21, 3:23 PM CST
Where: Rock Island County
Measured: 1 in hail
Coordinates: 41.500, -90.500

Tornado, Whiteside

When: April 21, 3:30 PM CST
Where: Whiteside County
Rating: F1
Path length: 0.3 mi
Path width: 30 yd
Property damage: $3,000
Coordinates: 41.600, -90.100

Hail, Winnebago

When: April 21, 3:30 PM CST
Where: Winnebago County
Measured: 1 in hail
Coordinates: 42.200, -89.080

Tornado, Henry

When: April 21, 3:35 PM CST
Where: Henry County
Rating: F2
Path length: 25.1 mi
Path width: 300 yd
Property damage: $250,000
Coordinates: 41.430, -90.400

Tornado, Henry

When: April 21, 3:50 PM CST
Where: Henry County
Rating: F2
Path length: 4.5 mi
Path width: 300 yd
Property damage: $25,000
Coordinates: 41.530, -89.970

Tornado, Boone

When: April 21, 3:50 PM CST
Where: Boone County
Rating: F4
Path length: 11.5 mi
Path width: 1,200 yd
Deaths: 24 direct, 0 indirect
Injuries: 410 direct, 0 indirect
Property damage: $250,000
Coordinates: 42.220, -88.920

Tornado, Ogle

When: April 21, 4:00 PM CST
Where: Ogle County
Rating: F1
Path length: 1 mi
Path width: 13 yd
Property damage: $25,000
Coordinates: 41.950, -89.330

Tornado, Lee

When: April 21, 4:02 PM CST
Where: Lee County
Rating: F2
Path length: 5.6 mi
Path width: 77 yd
Property damage: $25,000
Coordinates: 41.620, -89.480

Tornado, McHenry

When: April 21, 4:05 PM CST
Where: McHenry County
Rating: F4
Path length: 14 mi
Path width: 1,200 yd
Injuries: 40 direct, 0 indirect
Property damage: $25 million
Coordinates: 42.280, -88.700

Tornado, Lee

When: April 21, 4:15 PM CST
Where: Lee County
Rating: F1
Path length: 5.6 mi
Path width: 100 yd
Property damage: $250,000
Coordinates: 41.700, -89.280

Thunderstorm Wind, Cook

When: April 21, 4:22 PM CST
Where: Cook County
Measured: 55 kt (63 mph)
Coordinates: 42.000, -87.780

Tornado, Bureau

When: April 21, 4:30 PM CST
Where: Bureau County
Rating: F1
Path length: 0.5 mi
Path width: 150 yd
Property damage: $25,000
Coordinates: 41.500, -89.500

Tornado, Putnam

When: April 21, 4:30 PM CST
Where: Putnam County
Rating: F2
Path length: 0.3 mi
Path width: 30 yd
Injuries: 1 direct, 0 indirect
Property damage: $3,000
Coordinates: 41.250, -89.330

Tornado, De Kalb

When: April 21, 4:40 PM CST
Where: De Kalb County
Rating: F1
Path length: 2 mi
Path width: 40 yd
Property damage: $25,000
Coordinates: 41.900, -88.700

Thunderstorm Wind, Winnebago

When: April 21, 4:45 PM CST
Where: Winnebago County
Measured: 70 kt (81 mph)
Coordinates: 42.200, -89.080

Tornado, McHenry

When: April 21, 5:00 PM CST
Where: McHenry County
Rating: F4
Path length: 4.3 mi
Path width: 150 yd
Injuries: 3 direct, 0 indirect
Property damage: $2.5 million
Coordinates: 42.150, -88.270

Tornado, Du Page

When: April 21, 5:10 PM CST
Where: Du Page County
Rating: F1
Path length: 0.5 mi
Path width: 33 yd
Property damage: $25,000
Coordinates: 41.970, -88.120

Tornado, Du Page

When: April 21, 5:10 PM CST
Where: Du Page County
Rating: F1
Path length: 6.8 mi
Path width: 20 yd
Property damage: $250,000
Coordinates: 41.920, -88.000

Tornado, Kane

When: April 21, 5:10 PM CST
Where: Kane County
Rating: F2
Path length: 0.3 mi
Path width: 33 yd
Property damage: $250,000
Coordinates: 42.000, -88.280

Tornado, Lake

When: April 21, 5:10 PM CST
Where: Lake County
Rating: F4
Path length: 4.5 mi
Path width: 150 yd
Deaths: 1 direct, 0 indirect
Injuries: 97 direct, 0 indirect
Property damage: $2.5 million
Coordinates: 42.200, -88.200

Thunderstorm Wind, Livingston

When: April 21, 5:15 PM CST
Where: Livingston County
Coordinates: 41.080, -88.900

Tornado, Cook

When: April 21, 5:24 PM CST
Where: Cook County
Rating: F4
Path length: 15 mi
Path width: 200 yd
Deaths: 33 direct, 0 indirect
Injuries: 500 direct, 0 indirect
Property damage: $25 million
Coordinates: 41.670, -87.830

Tornado, Cook

When: April 21, 5:40 PM CST
Where: Cook County
Rating: F1
Path length: 0.3 mi
Path width: 10 yd
Property damage: $25,000
Coordinates: 41.600, -87.600

Thunderstorm Wind, Cook

When: April 21, 6:00 PM CST
Where: Cook County
Measured: 61 kt (70 mph)
Coordinates: 42.080, -87.780

Thunderstorm Wind, Morgan

When: April 21, 6:12 PM CST
Where: Morgan County
Measured: 56 kt (64 mph)
Coordinates: 39.700, -90.180

Tornado, Champaign

When: April 21, 8:50 PM CST
Where: Champaign County
Rating: F1
Path width: 33 yd
Property damage: $3,000
Coordinates: 40.100, -88.300

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
Tornado, Lake	1967-04-21				Direct

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Tornado: A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

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

The same day elsewhere

Every storm in Illinois in 1967 Every state in 1967 This day in weather history The tornado archive for Illinois, 1967

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: 10009989, 10009990, 10009991, 10009992, 10009993, 10009994, 10009995, 10009996, 10009997, 10009998, 10009999, 10010000, 10010001, 10010002, 10010003, 10010004, 10010005, 10010006, 10010007, 10010008, 10010009, 10010010, 10010011, 10010012, 10010013, 10010014, 10010015, 10010016, 10010017, 10010018.