S
M
T
W
T
F
S
27
63°
43°
28
62°
41°
29
62°
41°
30
64°
42°
1
67°
45°
2
67°
48°
3
66°
46°
4
66°
41°
5
64°
39°
6
59°
36°
7
58°
37°
8
57°
38°
9
58°
43°
10
60°
41°
11
57°
37°
12
56°
34°
13
55°
37°
14
56°
42°
15
Hist. Avg.
59°
39°
16
Hist. Avg.
59°
38°
17
Hist. Avg.
59°
38°
18
Hist. Avg.
58°
38°
19
Hist. Avg.
58°
37°
20
Hist. Avg.
58°
37°
21
Hist. Avg.
57°
37°
22
Hist. Avg.
57°
36°
23
Hist. Avg.
56°
36°
24
Hist. Avg.
56°
36°
25
Hist. Avg.
56°
36°
26
Hist. Avg.
56°
35°
27
Hist. Avg.
55°
35°
28
Hist. Avg.
55°
35°
29
Hist. Avg.
54°
34°
30
Hist. Avg.
54°
34°
31
Hist. Avg.
54°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Westport Island
Westport Island's October 2026 forecast shows daily high temperatures ranging from 55° to 67°, with overnight lows between 34° and 48°. The average high for October is 61° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Westport Island. See also: November | December | January.