S
M
T
W
T
F
S
27
48°
35°
28
47°
34°
29
49°
33°
30
50°
34°
1
48°
32°
2
46°
32°
3
45°
31°
4
Hist. Avg.
52°
39°
5
Hist. Avg.
51°
39°
6
Hist. Avg.
51°
38°
7
Hist. Avg.
51°
38°
8
Hist. Avg.
50°
38°
9
Hist. Avg.
50°
38°
10
Hist. Avg.
50°
37°
11
Hist. Avg.
50°
37°
12
Hist. Avg.
49°
37°
13
Hist. Avg.
49°
37°
14
Hist. Avg.
49°
36°
15
Hist. Avg.
48°
36°
16
Hist. Avg.
48°
36°
17
Hist. Avg.
48°
36°
18
Hist. Avg.
48°
35°
19
Hist. Avg.
47°
35°
20
Hist. Avg.
47°
35°
21
Hist. Avg.
47°
35°
22
Hist. Avg.
47°
35°
23
Hist. Avg.
46°
34°
24
Hist. Avg.
46°
34°
25
Hist. Avg.
46°
34°
26
Hist. Avg.
46°
34°
27
Hist. Avg.
45°
34°
28
Hist. Avg.
45°
33°
29
Hist. Avg.
45°
33°
30
Hist. Avg.
45°
33°
31
Hist. Avg.
44°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Port O'Brien
Port O'Brien's October 2026 forecast shows daily high temperatures ranging from 45° to 50°, with overnight lows between 31° and 35°. The average high for October is 48° with an average low of 33°. 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 Port O'Brien. See also: November | December | January.
