S
M
T
W
T
F
S
27
75°
57°
28
76°
57°
29
77°
58°
30
77°
58°
1
76°
57°
2
77°
58°
3
78°
59°
4
77°
59°
5
77°
58°
6
76°
58°
7
77°
57°
8
76°
58°
9
73°
51°
10
74°
55°
11
74°
53°
12
66°
54°
13
64°
52°
14
66°
51°
15
68°
51°
16
70°
44°
17
64°
50°
18
69°
47°
19
70°
49°
20
71°
51°
21
72°
50°
22
72°
51°
23
71°
50°
24
70°
49°
25
66°
52°
26
68°
51°
27
69°
45°
28
68°
41°
29
56°
39°
30
53°
36°
31
54°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Greencastle
Greencastle's October 2026 forecast shows daily high temperatures ranging from 53° to 78°, with overnight lows between 36° and 59°. The average high for October is 70° with an average low of 52°. 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 Greencastle. See also: November | December | January.
