S
M
T
W
T
F
S
27
75°
42°
28
74°
41°
29
72°
41°
30
68°
40°
1
67°
39°
2
69°
36°
3
68°
38°
4
68°
39°
5
69°
31°
6
56°
27°
7
55°
26°
8
55°
30°
9
57°
30°
10
57°
27°
11
58°
34°
12
61°
34°
13
58°
31°
14
54°
26°
15
53°
28°
16
52°
26°
17
52°
27°
18
53°
31°
19
55°
34°
20
63°
32°
21
54°
33°
22
62°
33°
23
54°
32°
24
49°
27°
25
53°
29°
26
55°
32°
27
56°
31°
28
50°
24°
29
50°
27°
30
48°
28°
31
45°
26°
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 45° to 75°, with overnight lows between 24° and 42°. The average high for October is 58° with an average low of 32°. 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.