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