S
M
T
W
T
F
S
26
90°
58°
27
86°
58°
28
89°
59°
29
88°
59°
30
85°
58°
31
84°
58°
1
85°
56°
2
84°
58°
3
84°
58°
4
83°
57°
5
83°
57°
6
82°
54°
7
89°
54°
8
88°
57°
9
88°
56°
10
87°
54°
11
88°
55°
12
87°
53°
13
83°
52°
14
82°
50°
15
82°
49°
16
83°
53°
17
88°
50°
18
88°
53°
19
90°
54°
20
89°
55°
21
88°
54°
22
89°
54°
23
88°
51°
24
82°
44°
25
79°
43°
26
78°
44°
27
81°
46°
28
82°
44°
29
81°
46°
30
85°
47°
31
86°
49°
1
83°
50°
2
85°
49°
3
86°
46°
4
78°
45°
5
80°
42°
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 78° to 90°, with overnight lows between 42° and 59°. The average high for August is 85° with an average low of 52°. 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.
