S
M
T
W
T
F
S
29
66°
55°
30
69°
50°
1
71°
45°
2
66°
44°
3
63°
45°
4
64°
41°
5
63°
42°
6
62°
44°
7
66°
52°
8
68°
54°
9
70°
55°
10
72°
51°
11
74°
49°
12
59°
41°
13
71°
49°
14
71°
51°
15
Hist. Avg.
66°
48°
16
Hist. Avg.
66°
48°
17
Hist. Avg.
65°
48°
18
Hist. Avg.
65°
48°
19
Hist. Avg.
65°
48°
20
Hist. Avg.
65°
47°
21
Hist. Avg.
65°
47°
22
Hist. Avg.
65°
47°
23
Hist. Avg.
64°
47°
24
Hist. Avg.
64°
47°
25
Hist. Avg.
64°
47°
26
Hist. Avg.
64°
47°
27
Hist. Avg.
64°
46°
28
Hist. Avg.
64°
46°
29
Hist. Avg.
64°
46°
30
Hist. Avg.
64°
46°
31
Hist. Avg.
64°
46°
1
Hist. Avg.
64°
46°
2
Hist. Avg.
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Pasadena
Pasadena's December 2026 forecast shows daily high temperatures ranging from 59° to 74°, with overnight lows between 41° and 55°. The average high for December is 67° with an average low of 48°. 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 Pasadena. See also: January | February | March.
