Average October Temperatures for Idaho

Average temperatures for October at cities, towns, parks and lakes throughout Idaho are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Eastern, Central, Southwestern and Northern Idaho.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Eastern Idaho

Average October temperatures
High °F	Low °F	Place	High °C	Low °C
58	29	Driggs	15	-2
59	31	Idaho Falls	15	-1
51	24	Island Park	11	-4
63	32	Malad City	17	0
63	38	Pocatello	17	4
63	33	Preston	17	1
58	32	Saint Anthony	14	0

Central Idaho

Average daily temperatures in October
High °F	Low °F	Place	High °C	Low °C
54	27	Craters of the Moon Monument	12	-3
56	28	Ketchum	13	-2
64	34	Lake Walcott, Minidoka Dam	18	1
61	31	Middle Fork Lodge	16	-1
58	31	Salmon	15	-1
59	36	St. Maries	15	2
56	19	Stanley, Sawtooth Recreation Area	13	-7
63	36	Twin Falls	17	2

Southwestern Idaho

October temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
65	42	Boise	18	5
66	45	Brownlee Reservoir Dam	19	7
70	40	Bruneau	21	4
62	28	Idaho City	16	-3
66	39	Lake Lowell, Deer Flat Dam	19	4
57	28	McCall	14	-2
67	37	Mountain Home	20	3

Northern Idaho

Average October temperatures
High °F	Low °F	Place	High °C	Low °C
56	36	Bonners Ferry	14	2
58	39	Coeur d’Alene	15	4
58	28	Elk City	15	-2
58	33	Kellogg	14	0
63	42	Lewiston	17	6
61	33	Moscow	16	0
55	34	Mullan	13	1
58	33	Porthill	15	1
54	30	Powell	12	-1
64	36	Riggins	18	2
56	34	Sandpoint	14	1
55	36	Wallace	13	2

Average Temperatures for Idaho in October

Eastern Idaho

Central Idaho

Southwestern Idaho

Northern Idaho

Reference

More Idaho Weather Information