S
M
T
W
T
F
S
29
39°
29°
30
44°
25°
1
42°
21°
2
38°
23°
3
37°
21°
4
39°
19°
5
34°
24°
6
38°
34°
7
42°
36°
8
49°
34°
9
52°
31°
10
48°
30°
11
43°
29°
12
41°
27°
13
42°
27°
14
37°
30°
15
38°
28°
16
41°
28°
17
37°
22°
18
37°
20°
19
34°
19°
20
36°
30°
21
40°
29°
22
44°
19°
23
41°
22°
24
34°
30°
25
44°
25°
26
44°
16°
27
40°
20°
28
31°
14°
29
38°
15°
30
30°
16°
31
44°
15°
1
40°
16°
2
35°
21°
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 30° to 52°, with overnight lows between 14° and 36°. The average high for December is 40° with an average low of 24°. 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.
