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