Montana tornado history

431 tornadoes in Montana from 1950 to 2025, killing 4 people. Choose a county to see every track on a map.

Valley County40Fergus County28Yellowstone County20Carter County18Judith Basin County18Powder River County18Chouteau County17Roosevelt County17Dawson County15Fallon County15Phillips County15Beaverhead County14Garfield County12Richland County12Rosebud County12Big Horn County11Cascade County11Custer County10Sheridan County10McCone County9Wibaux County9Petroleum County8Blaine County7Daniels County7Hill County7Wheatland County7Lewis and Clark County6Musselshell County6Toole County6Flathead County4Lake County4Liberty County4Teton County4Carbon County3Gallatin County3Glacier County3Meagher County3Prairie County3Ravalli County3Treasure County3Granite County2Madison County2Missoula County2Park County2Powell County2Sweet Grass County2Broadwater County1Deer Lodge County1Jefferson County1Sanders County1Stillwater County1

By decade

’50’60’70’80’90’00’10’20

Deadliest tornadoes in Montana

DateRatingPathWidthInjuredKilled
Jul 26, 2010EF318 mi880 yd12
Jul 9, 1983F11 mi500 yd11
Jul 19, 1952F316.4 mi10 yd21