S
M
T
W
T
F
S
26
85°
49°
27
81°
49°
28
81°
48°
29
82°
49°
30
82°
50°
31
78°
49°
1
77°
49°
2
78°
48°
3
78°
48°
4
80°
48°
5
78°
48°
6
77°
47°
7
83°
40°
8
80°
48°
9
85°
44°
10
80°
41°
11
82°
46°
12
81°
45°
13
81°
44°
14
78°
39°
15
77°
39°
16
77°
40°
17
82°
38°
18
84°
43°
19
85°
48°
20
87°
44°
21
85°
45°
22
83°
44°
23
84°
43°
24
77°
36°
25
74°
34°
26
73°
35°
27
75°
41°
28
77°
35°
29
79°
39°
30
80°
41°
31
82°
43°
1
79°
44°
2
81°
42°
3
82°
37°
4
78°
35°
5
75°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Jackson Hole
Jackson Hole's August 2026 forecast shows daily high temperatures ranging from 73° to 87°, with overnight lows between 33° and 50°. The average high for August is 80° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Jackson Hole. See also: September | October | November.