S
M
T
W
T
F
S
26
91°
54°
27
80°
52°
28
82°
48°
29
83°
50°
30
84°
45°
31
87°
46°
1
85°
53°
2
81°
46°
3
70°
40°
4
72°
40°
5
75°
43°
6
84°
42°
7
82°
43°
8
83°
41°
9
81°
42°
10
82°
43°
11
79°
46°
12
78°
46°
13
79°
47°
14
76°
40°
15
79°
46°
16
71°
45°
17
73°
41°
18
74°
44°
19
78°
44°
20
75°
43°
21
69°
42°
22
70°
42°
23
72°
44°
24
75°
43°
25
70°
39°
26
72°
42°
27
77°
43°
28
76°
44°
29
77°
44°
30
76°
43°
31
74°
43°
1
73°
42°
2
66°
42°
3
65°
39°
4
67°
40°
5
72°
42°
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 65° to 85°, with overnight lows between 39° and 53°. The average high for August is 75° 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.