S
M
T
W
T
F
S
29
62°
41°
30
61°
43°
1
60°
43°
2
57°
41°
3
56°
43°
4
57°
42°
5
58°
42°
6
57°
44°
7
59°
40°
8
59°
41°
9
58°
36°
10
57°
37°
11
58°
42°
12
53°
43°
13
53°
42°
14
55°
43°
15
55°
37°
16
57°
41°
17
53°
40°
18
53°
41°
19
51°
41°
20
56°
40°
21
56°
41°
22
52°
40°
23
51°
41°
24
51°
43°
25
54°
44°
26
58°
41°
27
58°
42°
28
55°
39°
29
54°
38°
30
53°
39°
31
51°
36°
1
56°
37°
2
56°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Colusa
Colusa's December 2026 forecast shows daily high temperatures ranging from 51° to 62°, with overnight lows between 35° and 44°. The average high for December is 56° with an average low of 41°. 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 Colusa. See also: January | February | March.
