S
M
T
W
T
F
S
29
71°
51°
30
65°
47°
1
64°
41°
2
64°
42°
3
63°
41°
4
64°
43°
5
67°
50°
6
68°
46°
7
69°
43°
8
61°
41°
9
67°
43°
10
68°
41°
11
61°
40°
12
Hist. Avg.
66°
45°
13
Hist. Avg.
66°
45°
14
Hist. Avg.
66°
45°
15
Hist. Avg.
66°
45°
16
Hist. Avg.
65°
45°
17
Hist. Avg.
65°
45°
18
Hist. Avg.
65°
44°
19
Hist. Avg.
65°
44°
20
Hist. Avg.
65°
44°
21
Hist. Avg.
65°
44°
22
Hist. Avg.
65°
44°
23
Hist. Avg.
65°
44°
24
Hist. Avg.
65°
44°
25
Hist. Avg.
65°
44°
26
Hist. Avg.
65°
44°
27
Hist. Avg.
65°
44°
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 61° to 71°, with overnight lows between 40° and 51°. The average high for December is 66° with an average low of 44°. 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.
