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