S
M
T
W
T
F
S
29
67°
46°
30
65°
45°
1
68°
45°
2
69°
44°
3
66°
45°
4
68°
46°
5
72°
45°
6
68°
43°
7
65°
45°
8
66°
39°
9
61°
40°
10
62°
42°
11
66°
43°
12
69°
46°
13
70°
48°
14
70°
41°
15
61°
41°
16
61°
40°
17
62°
39°
18
63°
42°
19
65°
41°
20
66°
49°
21
66°
40°
22
61°
38°
23
60°
41°
24
63°
39°
25
62°
40°
26
61°
49°
27
62°
49°
28
Hist. Avg.
65°
44°
29
Hist. Avg.
65°
44°
30
Hist. Avg.
66°
45°
31
Hist. Avg.
66°
45°
1
Hist. Avg.
66°
45°
2
Hist. Avg.
66°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Phoenix
Phoenix's December 2026 forecast shows daily high temperatures ranging from 60° to 72°, with overnight lows between 38° and 49°. The average high for December is 65° with an average low of 43°. 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 Phoenix. See also: January | February | March.
