Average Temperatures for Idaho in August





Average temperatures for August 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 1981 to 2010 by the US National Climatic Data Center.

Eastern Idaho

Average August temperatures
High °F Low °F Place High °C Low °C
79 45 Driggs 26 7
86 48 Idaho Falls 30 9
81 41 Island Park 27 5
87 50 Malad City 31 10
87 55 Pocatello 31 13
86 51 Preston 30 11
83 45 Saint Anthony 28 7

Central Idaho

Average daily temperatures in August
High °F Low °F Place High °C Low °C
83 52 Craters of the Moon Monument 29 11
80 43 Grouse 27 6
80 43 Ketchum 26 6
87 52 Lake Walcott, Minidoka Dam 31 11
85 45 Middle Fork Lodge 29 7
84 49 Salmon 29 9
79 33 Stanley, Sawtooth Recreation Area 26 1
85 52 Twin Falls 29 11

Southwestern Idaho

August temperatures: daily averages
High °F Low °F Place High °C Low °C
90 60 Boise 32 15
93 64 Brownlee Reservoir Dam 34 18
94 57 Bruneau 34 14
87 44 Idaho City 30 6
89 58 Lake Lowell, Deer Flat Dam 32 14
80 41 McCall 27 5
92 56 Mountain Home 34 14

Northern Idaho

Average August temperatures
High °F Low °F Place High °C Low °C
83 56 Coeur d’Alene 28 13
82 39 Elk City 28 4
83 50 Kellogg 28 10
89 59 Lewiston 32 15
85 49 Moscow 30 9
83 50 Porthill 28 10
82 43 Powell 28 6
92 57 Riggins 33 14
82 49 Sandpoint 28 9
80 50 Wallace 27 10
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

Idaho Temperatures
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