S
M
T
W
T
F
S
29
57°
44°
30
65°
44°
1
64°
45°
2
63°
43°
3
61°
39°
4
50°
36°
5
58°
41°
6
60°
41°
7
58°
38°
8
51°
37°
9
49°
36°
10
49°
34°
11
48°
31°
12
48°
30°
13
49°
31°
14
48°
27°
15
48°
33°
16
49°
37°
17
58°
38°
18
55°
39°
19
56°
33°
20
55°
24°
21
51°
24°
22
44°
26°
23
47°
35°
24
53°
26°
25
59°
25°
26
46°
26°
27
47°
25°
28
46°
25°
29
46°
32°
30
49°
37°
31
61°
25°
1
61°
23°
2
45°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Olivia
Olivia's December 2026 forecast shows daily high temperatures ranging from 44° to 65°, with overnight lows between 20° and 45°. The average high for December is 53° with an average low of 33°. 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 Olivia. See also: January | February | March.
