S
M
T
W
T
F
S
27
74°
43°
28
76°
43°
29
76°
36°
30
71°
45°
1
72°
45°
2
70°
37°
3
64°
40°
4
61°
37°
5
62°
31°
6
62°
29°
7
57°
28°
8
58°
28°
9
59°
28°
10
59°
30°
11
61°
38°
12
65°
26°
13
57°
24°
14
53°
26°
15
53°
22°
16
52°
22°
17
51°
24°
18
57°
27°
19
60°
31°
20
64°
33°
21
64°
33°
22
63°
28°
23
63°
29°
24
62°
32°
25
65°
31°
26
63°
26°
27
59°
18°
28
48°
22°
29
50°
33°
30
57°
34°
31
55°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Green River
Green River's October 2026 forecast shows daily high temperatures ranging from 48° to 76°, with overnight lows between 18° and 45°. The average high for October is 61° with an average low of 31°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Green River. See also: November | December | January.