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