S
M
T
W
T
F
S
29
65°
44°
30
67°
48°
1
72°
50°
2
70°
49°
3
64°
50°
4
68°
48°
5
67°
47°
6
69°
42°
7
69°
42°
8
67°
43°
9
69°
44°
10
70°
46°
11
71°
45°
12
70°
48°
13
71°
44°
14
69°
45°
15
69°
45°
16
69°
43°
17
68°
53°
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 64° to 72°, with overnight lows between 42° and 53°. The average high for December is 69° with an average low of 46°. 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.
