S
M
T
W
T
F
S
26
84°
61°
27
84°
63°
28
83°
63°
29
79°
62°
30
78°
63°
31
84°
63°
1
83°
62°
2
84°
61°
3
85°
62°
4
85°
63°
5
84°
62°
6
80°
60°
7
79°
61°
8
80°
55°
9
78°
56°
10
78°
55°
11
79°
61°
12
82°
62°
13
84°
61°
14
83°
55°
15
78°
54°
16
77°
57°
17
79°
61°
18
76°
54°
19
80°
54°
20
79°
55°
21
79°
54°
22
80°
56°
23
82°
53°
24
82°
53°
25
81°
54°
26
79°
57°
27
80°
58°
28
76°
57°
29
81°
60°
30
81°
56°
31
80°
50°
1
76°
49°
2
73°
51°
3
73°
50°
4
74°
50°
5
72°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Green River
Green River's August 2026 forecast shows daily high temperatures ranging from 72° to 85°, with overnight lows between 49° and 63°. The average high for August is 80° with an average low of 57°. 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 Green River. See also: September | October | November.
