Highest Temperatures in Idaho Falls History

This is a list of the 20 highest temperatures ever recorded in Idaho Falls, Idaho history from 1948–2024 based on data from the NOAA.

• Highest temperatures by year
• Lowest temperatures all-time
• Change city

Rank	Temperature	Date
1	102 °F	June 25, 1988
2	101 °F	July 23, 2023
2	101 °F	June 29, 2015
2	101 °F	July 13, 2002
2	101 °F	July 20, 1960
6	100 °F	September 3, 2022
6	100 °F	July 23, 2007
6	100 °F	July 23, 2003
6	100 °F	July 12, 2002
6	100 °F	July 31, 2000
6	100 °F	July 17, 1998
6	100 °F	July 31, 1989
6	100 °F	August 7, 1983
6	100 °F	July 30, 1966
6	100 °F	August 4, 1961
16	99 °F	August 17, 2023
16	99 °F	July 22, 2023
16	99 °F	September 7, 2022
16	99 °F	September 6, 2022
16	99 °F	July 18, 2021
16	99 °F	July 7, 2021
16	99 °F	July 5, 2017
16	99 °F	July 22, 2006
16	99 °F	August 14, 2003
16	99 °F	July 20, 2003
16	99 °F	July 22, 2000
16	99 °F	August 8, 1990
16	99 °F	July 19, 1966
16	99 °F	August 3, 1961
16	99 °F	July 21, 1960
16	99 °F	July 19, 1960
16	99 °F	July 15, 1955
16	99 °F	August 30, 1954
16	99 °F	July 15, 1951