S
M
T
W
T
F
S
29
54°
27°
30
53°
26°
1
53°
21°
2
55°
25°
3
54°
25°
4
53°
24°
5
58°
25°
6
62°
24°
7
60°
24°
8
59°
25°
9
60°
24°
10
53°
22°
11
52°
9°
12
50°
9°
13
51°
12°
14
54°
11°
15
52°
15°
16
57°
19°
17
57°
20°
18
53°
18°
19
52°
23°
20
54°
20°
21
58°
21°
22
56°
12°
23
52°
8°
24
47°
10°
25
49°
13°
26
57°
22°
27
63°
16°
28
53°
22°
29
57°
24°
30
56°
18°
31
54°
12°
1
50°
11°
2
50°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Reserve
Reserve's December 2026 forecast shows daily high temperatures ranging from 47° to 63°, with overnight lows between 8° and 27°. The average high for December is 55° with an average low of 19°. 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 Reserve. See also: January | February | March.
