S
M
T
W
T
F
S
29
38°
27°
30
40°
26°
1
42°
31°
2
42°
30°
3
44°
14°
4
42°
14°
5
36°
17°
6
29°
15°
7
30°
14°
8
28°
15°
9
31°
13°
10
29°
18°
11
30°
19°
12
33°
16°
13
31°
19°
14
30°
23°
15
33°
26°
16
36°
25°
17
37°
23°
18
37°
28°
19
38°
26°
20
38°
25°
21
37°
24°
22
37°
24°
23
36°
25°
24
35°
22°
25
34°
21°
26
31°
20°
27
30°
18°
28
31°
19°
29
33°
24°
30
32°
10°
31
24°
9°
1
Hist. Avg.
30°
15°
2
Hist. Avg.
30°
15°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Alpena
Alpena's December 2026 forecast shows daily high temperatures ranging from 24° to 44°, with overnight lows between 9° and 31°. The average high for December is 34° with an average low of 21°. 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 Alpena. See also: January | February | March.
