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Idaho Falls October Weather

Averages and records for weather in Idaho Falls, Idaho in the month of October.

Typical Idaho Falls October Weather 1991–2020
Average daily high	59.6 °F
Average daily low	31.2 °F
Average monthly precipitation	0.9 inches
Daily chance of precipitation	20.9%

Idaho Falls October Weather Records 1948–2024
Highest temperature	88 °F	October 2, 2010
Lowest temperature	-3 °F	October 30, 2019
Highest daily low	57 °F	October 12, 1962
Lowest daily high	21 °F	October 31, 2002
Hottest average high temperature	69.8 °F	1988
Coldest average high temperature	50.1 °F	2019
Most daily precipitation	0.9 inches	October 8, 1973
Most monthly precipitation	2.8 inches	1974

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
October 1	67.3	35.9	87	21
October 2	66.9	35.6	88	24
October 3	66.5	35.3	86	22
October 4	66.1	34.9	80	24
October 5	65.7	34.7	82	21
October 6	65.4	34.4	80	21
October 7	65.1	34.1	79	20
October 8	64.6	33.9	80	18
October 9	64.1	33.6	81	20
October 10	63.6	33.3	82	13
October 11	63.0	32.9	80	15
October 12	62.4	32.6	78	13
October 13	61.7	32.3	79	16
October 14	61.0	31.9	81	17
October 15	60.3	31.5	76	16
October 16	59.6	31.1	78	17
October 17	59.0	30.7	77	15
October 18	58.4	30.3	78	18
October 19	57.9	29.8	75	14
October 20	57.5	29.5	78	15
October 21	57.0	29.2	77	19
October 22	56.5	28.9	79	16
October 23	56.1	28.7	71	13
October 24	55.7	28.5	74	16
October 25	55.3	28.2	76	8
October 26	54.8	28.0	71	1
October 27	54.3	27.7	71	12
October 28	53.7	27.4	72	7
October 29	53.1	27.1	72	3
October 30	52.5	26.8	69	-3
October 31	51.8	26.5	72	1

Weather Station Details

Years	Station	Coordinates
1948–2024	Idaho Falls Fanning Field	location