S
M
T
W
T
F
S
29
63°
35°
30
63°
34°
1
61°
32°
2
61°
33°
3
62°
33°
4
62°
32°
5
61°
32°
6
61°
33°
7
60°
32°
8
59°
31°
9
59°
31°
10
63°
32°
11
67°
32°
12
66°
34°
13
68°
34°
14
64°
32°
15
62°
31°
16
63°
30°
17
62°
31°
18
61°
30°
19
62°
31°
20
62°
30°
21
64°
31°
22
62°
30°
23
61°
31°
24
62°
31°
25
65°
33°
26
63°
36°
27
68°
31°
28
61°
31°
29
62°
32°
30
65°
33°
31
67°
33°
1
67°
35°
2
70°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Green Valley
Green Valley's December 2026 forecast shows daily high temperatures ranging from 59° to 70°, with overnight lows between 30° and 37°. The average high for December is 63° 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 December weather will actually feel in Green Valley. See also: January | February | March.
