S
M
T
W
T
F
S
29
59°
24°
30
54°
22°
1
45°
22°
2
44°
23°
3
47°
29°
4
50°
36°
5
48°
39°
6
62°
33°
7
62°
28°
8
45°
30°
9
47°
32°
10
46°
29°
11
47°
22°
12
43°
25°
13
42°
21°
14
40°
18°
15
38°
19°
16
40°
20°
17
41°
20°
18
39°
25°
19
42°
32°
20
49°
34°
21
49°
32°
22
52°
31°
23
45°
24°
24
42°
19°
25
38°
19°
26
39°
20°
27
45°
22°
28
44°
23°
29
46°
19°
30
40°
21°
31
43°
22°
1
46°
23°
2
50°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Salem
Salem's December 2026 forecast shows daily high temperatures ranging from 38° to 62°, with overnight lows between 18° and 39°. The average high for December is 46° 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 Salem. See also: January | February | March.
