S
M
T
W
T
F
S
29
43°
34°
30
41°
32°
1
41°
36°
2
44°
37°
3
46°
20°
4
47°
18°
5
33°
20°
6
29°
21°
7
31°
22°
8
32°
17°
9
32°
16°
10
28°
17°
11
26°
21°
12
31°
19°
13
30°
20°
14
30°
25°
15
32°
27°
16
34°
27°
17
35°
26°
18
36°
32°
19
38°
31°
20
38°
30°
21
37°
28°
22
37°
27°
23
34°
29°
24
35°
26°
25
36°
27°
26
35°
26°
27
34°
22°
28
33°
19°
29
32°
25°
30
32°
17°
31
34°
22°
1
30°
22°
2
Hist. Avg.
31°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Port Huron
Port Huron's December 2026 forecast shows daily high temperatures ranging from 26° to 47°, with overnight lows between 16° and 37°. The average high for December is 35° with an average low of 25°. 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 Port Huron. See also: January | February | March.