Average August Temperatures for Wyoming

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

You can jump to a separate table for each region of the state: Northwest, Southwest, North - Central, Northeast and Southeast Wyoming.

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.

Northwest Wyoming

Average August temperatures
High °F	Low °F	Place	High °C	Low °C
78	47	Alta	26	8
82	56	Cody	28	13
78	40	Jackson	26	4
81	42	Moose	27	5
76	40	Moran	24	5
71	42	Yellowstone Lake	22	5
80	47	Yellowstone Park, Mammoth	27	8
75	37	Yellowstone Park, Old Faithful	24	3
76	35	Yellowstone Park, South Entrance	25	2

Southwest Wyoming

Average daily temperatures in August
High °F	Low °F	Place	High °C	Low °C
80	47	Evanston	26	8
82	43	Fontenelle Reservoir Dam	28	6
82	41	Fossil Butte Monument	28	5
81	41	Kemmerer	27	5
82	53	Rock Springs	28	12

North - Central Wyoming

August temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
89	57	Boysen Reservoir Dam	31	14
70	41	Burgess Junction	21	5
86	54	Lander	30	12
86	52	Riverton	30	11
77	38	South Pass City	25	4
84	48	Ten Sleep	29	9
90	55	Thermopolis	32	13
88	52	Worland	31	11

Northeast Wyoming

Average August temperatures
High °F	Low °F	Place	High °C	Low °C
82	51	Buffalo	28	10
85	52	Devils Tower	29	11
85	56	Gillette	30	13
87	52	Sheridan	30	11
81	54	Sundance	27	12

Southeast Wyoming

Average August temperatures
High °F	Low °F	Place	High °C	Low °C
87	51	Casper	30	11
75	46	Centennial	24	8
82	54	Cheyenne	28	12
86	53	Douglas	30	11
79	50	Laramie	26	10
85	53	Muddy Gap	29	11
83	49	Rawlins	28	10
88	54	Torrington	31	12

Average Temperatures for Wyoming in August

Northwest Wyoming

Southwest Wyoming

North - Central Wyoming

Northeast Wyoming

Southeast Wyoming

Reference

More Wyoming Weather Information