S
M
T
W
T
F
S
29
41°
28°
30
44°
31°
1
43°
35°
2
43°
36°
3
44°
35°
4
42°
35°
5
45°
33°
6
43°
31°
7
42°
36°
8
45°
31°
9
46°
30°
10
44°
35°
11
44°
37°
12
46°
35°
13
48°
35°
14
47°
34°
15
46°
35°
16
46°
37°
17
47°
36°
18
47°
35°
19
46°
34°
20
44°
30°
21
43°
29°
22
40°
30°
23
39°
29°
24
39°
27°
25
40°
28°
26
39°
23°
27
38°
28°
28
38°
28°
29
42°
22°
30
42°
25°
31
34°
31°
1
41°
32°
2
40°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in White Salmon
White Salmon's December 2026 forecast shows daily high temperatures ranging from 34° to 48°, with overnight lows between 22° and 37°. 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 White Salmon. See also: January | February | March.