S
M
T
W
T
F
S
29
55°
37°
30
57°
32°
1
56°
25°
2
42°
23°
3
45°
29°
4
53°
35°
5
49°
33°
6
41°
28°
7
41°
22°
8
39°
20°
9
39°
23°
10
41°
26°
11
44°
25°
12
50°
27°
13
46°
28°
14
43°
25°
15
43°
25°
16
42°
27°
17
41°
22°
18
40°
19°
19
39°
18°
20
36°
15°
21
35°
20°
22
39°
26°
23
40°
21°
24
39°
18°
25
37°
18°
26
38°
21°
27
39°
19°
28
39°
18°
29
38°
23°
30
38°
19°
31
39°
17°
1
37°
13°
2
36°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Spokane
Spokane's December 2026 forecast shows daily high temperatures ranging from 35° to 57°, with overnight lows between 13° and 37°. The average high for December is 42° with an average low of 23°. 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 Spokane. See also: January | February | March.
