S
M
T
W
T
F
S
29
41°
29°
30
41°
29°
1
42°
31°
2
43°
37°
3
46°
38°
4
48°
33°
5
47°
30°
6
44°
30°
7
43°
31°
8
42°
34°
9
45°
33°
10
41°
34°
11
41°
31°
12
Hist. Avg.
45°
33°
13
Hist. Avg.
45°
33°
14
Hist. Avg.
45°
33°
15
Hist. Avg.
45°
32°
16
Hist. Avg.
44°
32°
17
Hist. Avg.
44°
32°
18
Hist. Avg.
44°
32°
19
Hist. Avg.
44°
32°
20
Hist. Avg.
44°
32°
21
Hist. Avg.
44°
32°
22
Hist. Avg.
44°
32°
23
Hist. Avg.
44°
33°
24
Hist. Avg.
44°
33°
25
Hist. Avg.
44°
33°
26
Hist. Avg.
44°
33°
27
Hist. Avg.
44°
33°
28
Hist. Avg.
44°
33°
29
Hist. Avg.
44°
33°
30
Hist. Avg.
44°
33°
31
Hist. Avg.
44°
33°
1
Hist. Avg.
45°
33°
2
Hist. Avg.
45°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Olympia
Olympia's December 2026 forecast shows daily high temperatures ranging from 41° to 48°, with overnight lows between 29° and 38°. The average high for December is 43° with an average low of 32°. 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 Olympia. See also: January | February | March.
