S
M
T
W
T
F
S
29
44°
27°
30
42°
32°
1
44°
33°
2
44°
32°
3
45°
32°
4
43°
30°
5
44°
30°
6
43°
29°
7
39°
23°
8
40°
27°
9
41°
33°
10
44°
32°
11
52°
27°
12
37°
22°
13
40°
24°
14
Hist. Avg.
43°
26°
15
Hist. Avg.
43°
26°
16
Hist. Avg.
43°
26°
17
Hist. Avg.
42°
26°
18
Hist. Avg.
42°
26°
19
Hist. Avg.
42°
26°
20
Hist. Avg.
42°
25°
21
Hist. Avg.
41°
25°
22
Hist. Avg.
41°
25°
23
Hist. Avg.
41°
25°
24
Hist. Avg.
41°
25°
25
Hist. Avg.
40°
24°
26
Hist. Avg.
40°
24°
27
Hist. Avg.
40°
24°
28
Hist. Avg.
40°
24°
29
Hist. Avg.
40°
24°
30
Hist. Avg.
40°
24°
31
Hist. Avg.
40°
23°
1
Hist. Avg.
39°
23°
2
Hist. Avg.
39°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Westport
Westport's December 2026 forecast shows daily high temperatures ranging from 37° to 52°, with overnight lows between 22° and 33°. The average high for December is 43° with an average low of 29°. 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 Westport. See also: January | February | March.
