S
M
T
W
T
F
S
27
70°
47°
28
69°
39°
29
64°
60°
30
75°
51°
1
63°
39°
2
59°
49°
3
63°
46°
4
62°
41°
5
60°
51°
6
68°
43°
7
66°
44°
8
66°
46°
9
65°
54°
10
66°
43°
11
62°
40°
12
58°
39°
13
58°
42°
14
55°
35°
15
61°
43°
16
61°
42°
17
59°
41°
18
56°
40°
19
52°
38°
20
47°
35°
21
48°
33°
22
57°
38°
23
57°
38°
24
56°
37°
25
55°
35°
26
45°
35°
27
53°
38°
28
55°
35°
29
53°
36°
30
53°
36°
31
50°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Garrison
Garrison's October 2026 forecast shows daily high temperatures ranging from 45° to 68°, with overnight lows between 33° and 54°. The average high for October is 58° with an average low of 40°. 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 Garrison. See also: November | December | January.