S
M
T
W
T
F
S
29
42°
35°
30
45°
36°
1
46°
35°
2
51°
37°
3
50°
35°
4
36°
29°
5
47°
26°
6
51°
24°
7
36°
22°
8
34°
24°
9
37°
19°
10
33°
16°
11
33°
17°
12
32°
24°
13
34°
20°
14
34°
28°
15
36°
32°
16
38°
29°
17
48°
24°
18
47°
24°
19
34°
23°
20
35°
21°
21
34°
18°
22
32°
19°
23
35°
24°
24
40°
27°
25
37°
31°
26
41°
27°
27
45°
25°
28
39°
24°
29
33°
25°
30
34°
24°
31
37°
23°
1
35°
21°
2
35°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Oakmont
Oakmont's December 2026 forecast shows daily high temperatures ranging from 32° to 51°, with overnight lows between 16° and 37°. The average high for December is 39° 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 Oakmont. See also: January | February | March.
