S
M
T
W
T
F
S
27
67°
53°
28
67°
51°
29
64°
50°
30
61°
47°
1
61°
45°
2
62°
44°
3
61°
48°
4
60°
47°
5
61°
46°
6
60°
50°
7
60°
51°
8
62°
50°
9
65°
48°
10
65°
50°
11
60°
45°
12
59°
45°
13
Hist. Avg.
59°
48°
14
Hist. Avg.
59°
48°
15
Hist. Avg.
59°
48°
16
Hist. Avg.
59°
48°
17
Hist. Avg.
59°
48°
18
Hist. Avg.
58°
47°
19
Hist. Avg.
58°
47°
20
Hist. Avg.
58°
47°
21
Hist. Avg.
58°
47°
22
Hist. Avg.
57°
47°
23
Hist. Avg.
57°
47°
24
Hist. Avg.
57°
46°
25
Hist. Avg.
57°
46°
26
Hist. Avg.
56°
46°
27
Hist. Avg.
56°
46°
28
Hist. Avg.
56°
46°
29
Hist. Avg.
56°
45°
30
Hist. Avg.
55°
45°
31
Hist. Avg.
55°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Portchester
Portchester's October 2026 forecast shows daily high temperatures ranging from 59° to 67°, with overnight lows between 44° and 53°. The average high for October is 62° with an average low of 48°. 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 Portchester. See also: November | December | January.