S
M
T
W
T
F
S
29
44°
28°
30
45°
30°
1
43°
32°
2
44°
34°
3
51°
25°
4
52°
22°
5
37°
29°
6
39°
30°
7
45°
33°
8
49°
34°
9
38°
23°
10
48°
38°
11
50°
35°
12
Hist. Avg.
41°
27°
13
Hist. Avg.
40°
27°
14
Hist. Avg.
40°
27°
15
Hist. Avg.
40°
26°
16
Hist. Avg.
40°
26°
17
Hist. Avg.
39°
26°
18
Hist. Avg.
39°
26°
19
Hist. Avg.
39°
26°
20
Hist. Avg.
38°
25°
21
Hist. Avg.
38°
25°
22
Hist. Avg.
38°
25°
23
Hist. Avg.
38°
25°
24
Hist. Avg.
38°
24°
25
Hist. Avg.
37°
24°
26
Hist. Avg.
37°
24°
27
Hist. Avg.
37°
24°
28
Hist. Avg.
37°
24°
29
Hist. Avg.
36°
23°
30
Hist. Avg.
36°
23°
31
Hist. Avg.
36°
23°
1
Hist. Avg.
36°
23°
2
Hist. Avg.
36°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in McComb
McComb's December 2026 forecast shows daily high temperatures ranging from 37° to 52°, with overnight lows between 22° and 38°. The average high for December is 45° with an average low of 30°. 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 McComb. See also: January | February | March.
