S
M
T
W
T
F
S
26
88°
42°
27
86°
42°
28
83°
47°
29
84°
43°
30
83°
46°
31
84°
42°
1
79°
46°
2
78°
48°
3
78°
43°
4
76°
45°
5
79°
50°
6
84°
49°
7
84°
47°
8
83°
47°
9
83°
48°
10
82°
48°
11
84°
47°
12
83°
45°
13
82°
44°
14
83°
47°
15
85°
46°
16
80°
45°
17
82°
46°
18
76°
45°
19
76°
41°
20
75°
42°
21
77°
47°
22
79°
44°
23
78°
37°
24
Hist. Avg.
76°
38°
25
Hist. Avg.
76°
38°
26
Hist. Avg.
75°
38°
27
Hist. Avg.
75°
38°
28
Hist. Avg.
75°
37°
29
Hist. Avg.
74°
37°
30
Hist. Avg.
74°
37°
31
Hist. Avg.
74°
37°
1
Hist. Avg.
73°
36°
2
Hist. Avg.
73°
36°
3
Hist. Avg.
73°
36°
4
Hist. Avg.
72°
36°
5
Hist. Avg.
72°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Jackson Hole
Jackson Hole's August 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 37° and 50°. The average high for August is 81° with an average low of 45°. 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.