S
M
T
W
T
F
S
26
85°
48°
27
85°
49°
28
86°
48°
29
86°
49°
30
85°
50°
31
84°
49°
1
85°
49°
2
86°
48°
3
86°
50°
4
85°
49°
5
83°
48°
6
81°
48°
7
84°
47°
8
85°
48°
9
84°
47°
10
86°
40°
11
76°
36°
12
75°
38°
13
77°
41°
14
78°
40°
15
83°
39°
16
82°
41°
17
81°
44°
18
76°
43°
19
83°
43°
20
86°
45°
21
86°
43°
22
83°
44°
23
84°
43°
24
82°
43°
25
80°
42°
26
79°
43°
27
80°
43°
28
81°
42°
29
79°
43°
30
80°
43°
31
74°
42°
1
70°
40°
2
72°
42°
3
73°
41°
4
71°
40°
5
69°
38°
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 69° to 86°, with overnight lows between 36° and 50°. The average high for August is 81° with an average low of 44°. 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.