S
M
T
W
T
F
S
29
50°
37°
30
61°
37°
1
58°
39°
2
59°
37°
3
60°
32°
4
47°
28°
5
57°
32°
6
57°
34°
7
50°
30°
8
45°
29°
9
46°
27°
10
44°
25°
11
43°
23°
12
43°
22°
13
44°
22°
14
44°
20°
15
44°
23°
16
45°
30°
17
46°
31°
18
51°
32°
19
54°
22°
20
51°
17°
21
45°
17°
22
39°
19°
23
44°
25°
24
42°
18°
25
43°
18°
26
40°
19°
27
41°
17°
28
41°
17°
29
42°
20°
30
43°
28°
31
54°
19°
1
55°
16°
2
40°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Pleasant Hill
Pleasant Hill's December 2026 forecast shows daily high temperatures ranging from 39° to 61°, with overnight lows between 13° and 39°. The average high for December is 48° with an average low of 25°. 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 Pleasant Hill. See also: January | February | March.
