Average July Temperatures for Idaho

Average temperatures for July 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 July temperatures
High °F	Low °F	Place	High °C	Low °C
83	48	Driggs	28	9
87	49	Idaho Falls	30	10
77	43	Island Park	25	6
91	51	Malad City	33	11
91	59	Pocatello	33	15
89	54	Preston	32	12
83	50	Saint Anthony	29	10

Central Idaho

Average daily temperatures in July
High °F	Low °F	Place	High °C	Low °C
82	49	Craters of the Moon Monument	28	10
80	45	Ketchum	27	7
89	54	Lake Walcott, Minidoka Dam	32	12
86	48	Middle Fork Lodge	30	9
86	52	Salmon	30	11
84	52	St. Maries	29	11
80	34	Stanley, Sawtooth Recreation Area	27	1
87	55	Twin Falls	30	13

Southwestern Idaho

July temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
93	62	Boise	34	17
95	64	Brownlee Reservoir Dam	35	18
96	61	Bruneau	35	16
87	46	Idaho City	31	8
90	59	Lake Lowell, Deer Flat Dam	32	15
81	45	McCall	27	7
95	60	Mountain Home	35	15

Northern Idaho

Average July temperatures
High °F	Low °F	Place	High °C	Low °C
85	53	Bonners Ferry	29	12
83	57	Coeur d’Alene	28	14
83	43	Elk City	28	6
85	51	Kellogg	29	10
91	61	Lewiston	33	16
84	45	Moscow	29	7
81	49	Mullan	27	10
86	52	Porthill	30	11
83	46	Powell	28	8
90	52	Riggins	32	11
82	52	Sandpoint	28	11
81	51	Wallace	27	11

Average Temperatures for Idaho in July

Eastern Idaho

Central Idaho

Southwestern Idaho

Northern Idaho

Reference

More Idaho Weather Information