S
M
T
W
T
F
S
27
61°
53°
28
57°
54°
29
70°
55°
30
67°
53°
1
79°
51°
2
83°
53°
3
65°
36°
4
63°
48°
5
66°
39°
6
58°
30°
7
63°
41°
8
65°
43°
9
61°
41°
10
58°
40°
11
63°
45°
12
66°
46°
13
60°
43°
14
57°
39°
15
59°
42°
16
61°
37°
17
61°
42°
18
60°
38°
19
50°
33°
20
50°
31°
21
49°
30°
22
50°
39°
23
55°
38°
24
56°
40°
25
50°
39°
26
51°
38°
27
49°
36°
28
48°
34°
29
49°
37°
30
57°
39°
31
56°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Harrison
Harrison's October 2026 forecast shows daily high temperatures ranging from 48° to 66°, with overnight lows between 30° and 48°. The average high for October is 57° with an average low of 39°. 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 Harrison. See also: November | December | January.