S
M
T
W
T
F
S
26
91°
52°
27
91°
54°
28
85°
52°
29
82°
50°
30
83°
52°
31
84°
50°
1
82°
52°
2
84°
52°
3
84°
51°
4
83°
56°
5
84°
58°
6
88°
57°
7
88°
57°
8
87°
54°
9
86°
56°
10
89°
57°
11
89°
54°
12
83°
54°
13
83°
56°
14
85°
53°
15
84°
52°
16
82°
53°
17
81°
50°
18
80°
50°
19
80°
48°
20
79°
50°
21
83°
53°
22
Hist. Avg.
80°
52°
23
Hist. Avg.
80°
52°
24
Hist. Avg.
79°
51°
25
Hist. Avg.
79°
51°
26
Hist. Avg.
79°
51°
27
Hist. Avg.
78°
50°
28
Hist. Avg.
78°
50°
29
Hist. Avg.
78°
50°
30
Hist. Avg.
77°
50°
31
Hist. Avg.
77°
49°
1
Hist. Avg.
77°
49°
2
Hist. Avg.
76°
49°
3
Hist. Avg.
76°
48°
4
Hist. Avg.
76°
48°
5
Hist. Avg.
75°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Green River
Green River's August 2026 forecast shows daily high temperatures ranging from 79° to 91°, with overnight lows between 48° and 58°. The average high for August is 84° with an average low of 53°. 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.