S
M
T
W
T
F
S
29
38°
19°
30
39°
21°
1
43°
11°
2
37°
5°
3
29°
8°
4
30°
11°
5
35°
17°
6
37°
19°
7
38°
21°
8
37°
21°
9
39°
20°
10
39°
17°
11
38°
17°
12
36°
16°
13
37°
17°
14
36°
18°
15
36°
10°
16
32°
4°
17
29°
13°
18
27°
3°
19
26°
12°
20
25°
17°
21
33°
14°
22
37°
15°
23
36°
11°
24
Hist. Avg.
28°
13°
25
Hist. Avg.
28°
13°
26
Hist. Avg.
28°
13°
27
Hist. Avg.
28°
13°
28
Hist. Avg.
28°
13°
29
Hist. Avg.
28°
13°
30
Hist. Avg.
28°
13°
31
Hist. Avg.
28°
13°
1
Hist. Avg.
29°
13°
2
Hist. Avg.
29°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Green River
Green River's December 2026 forecast shows daily high temperatures ranging from 25° to 43°, with overnight lows between 3° and 21°. The average high for December is 35° with an average low of 14°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Green River. See also: January | February | March.
