S
M
T
W
T
F
S
29
54°
36°
30
57°
31°
1
52°
38°
2
53°
39°
3
58°
38°
4
55°
38°
5
54°
28°
6
55°
26°
7
50°
25°
8
41°
24°
9
41°
27°
10
46°
23°
11
40°
24°
12
39°
19°
13
38°
20°
14
36°
22°
15
38°
22°
16
39°
28°
17
40°
36°
18
54°
31°
19
53°
25°
20
49°
26°
21
43°
28°
22
42°
24°
23
42°
21°
24
Hist. Avg.
46°
33°
25
Hist. Avg.
46°
32°
26
Hist. Avg.
46°
32°
27
Hist. Avg.
45°
32°
28
Hist. Avg.
45°
32°
29
Hist. Avg.
45°
32°
30
Hist. Avg.
45°
32°
31
Hist. Avg.
45°
31°
1
Hist. Avg.
44°
31°
2
Hist. Avg.
44°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Oregon
Oregon's December 2026 forecast shows daily high temperatures ranging from 36° to 58°, with overnight lows between 19° and 39°. The average high for December is 47° with an average low of 28°. 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 Oregon. See also: January | February | March.
