S
M
T
W
T
F
S
29
65°
38°
30
65°
36°
1
67°
38°
2
69°
36°
3
70°
38°
4
68°
40°
5
72°
42°
6
73°
44°
7
75°
45°
8
74°
43°
9
73°
37°
10
64°
34°
11
62°
32°
12
66°
38°
13
63°
37°
14
63°
40°
15
Hist. Avg.
66°
36°
16
Hist. Avg.
66°
36°
17
Hist. Avg.
66°
36°
18
Hist. Avg.
66°
36°
19
Hist. Avg.
65°
35°
20
Hist. Avg.
65°
35°
21
Hist. Avg.
65°
35°
22
Hist. Avg.
65°
35°
23
Hist. Avg.
65°
35°
24
Hist. Avg.
65°
35°
25
Hist. Avg.
65°
35°
26
Hist. Avg.
65°
35°
27
Hist. Avg.
65°
35°
28
Hist. Avg.
66°
35°
29
Hist. Avg.
66°
35°
30
Hist. Avg.
66°
35°
31
Hist. Avg.
66°
35°
1
Hist. Avg.
66°
35°
2
Hist. Avg.
66°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Green Valley
Green Valley's December 2026 forecast shows daily high temperatures ranging from 62° to 75°, with overnight lows between 32° and 45°. The average high for December is 68° with an average low of 39°. 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.
