S
M
T
W
T
F
S
29
64°
35°
30
76°
38°
1
67°
37°
2
67°
37°
3
69°
40°
4
72°
39°
5
71°
37°
6
71°
36°
7
66°
38°
8
69°
39°
9
72°
40°
10
72°
39°
11
71°
38°
12
71°
38°
13
70°
39°
14
73°
39°
15
73°
38°
16
72°
38°
17
73°
39°
18
73°
41°
19
74°
41°
20
75°
40°
21
74°
34°
22
67°
33°
23
62°
34°
24
63°
41°
25
67°
45°
26
69°
40°
27
62°
36°
28
61°
32°
29
61°
32°
30
62°
33°
31
62°
33°
1
63°
34°
2
63°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Tempe
Tempe's December 2026 forecast shows daily high temperatures ranging from 61° to 76°, with overnight lows between 32° and 45°. The average high for December is 68° with an average low of 37°. 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 Tempe. See also: January | February | March.
