S
M
T
W
T
F
S
29
51°
35°
30
52°
37°
1
55°
41°
2
58°
42°
3
53°
41°
4
53°
39°
5
54°
39°
6
53°
40°
7
53°
35°
8
54°
40°
9
55°
39°
10
57°
40°
11
57°
38°
12
58°
39°
13
58°
41°
14
57°
38°
15
54°
39°
16
53°
42°
17
Hist. Avg.
53°
39°
18
Hist. Avg.
53°
39°
19
Hist. Avg.
53°
39°
20
Hist. Avg.
53°
39°
21
Hist. Avg.
53°
39°
22
Hist. Avg.
53°
39°
23
Hist. Avg.
53°
39°
24
Hist. Avg.
53°
39°
25
Hist. Avg.
53°
39°
26
Hist. Avg.
53°
39°
27
Hist. Avg.
53°
39°
28
Hist. Avg.
53°
39°
29
Hist. Avg.
53°
39°
30
Hist. Avg.
53°
39°
31
Hist. Avg.
53°
39°
1
Hist. Avg.
53°
39°
2
Hist. Avg.
53°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Klamath
Klamath's December 2026 forecast shows daily high temperatures ranging from 51° to 58°, with overnight lows between 35° and 42°. The average high for December is 55° with an average low of 39°. 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 Klamath. See also: January | February | March.
