S
M
T
W
T
F
S
27
63°
59°
28
71°
60°
29
77°
62°
30
80°
63°
1
87°
62°
2
89°
65°
3
78°
57°
4
63°
52°
5
68°
44°
6
66°
44°
7
74°
53°
8
75°
48°
9
71°
50°
10
70°
48°
11
67°
51°
12
68°
52°
13
71°
51°
14
64°
46°
15
63°
50°
16
63°
47°
17
64°
44°
18
66°
50°
19
57°
42°
20
60°
38°
21
56°
46°
22
56°
42°
23
57°
38°
24
60°
44°
25
55°
42°
26
54°
40°
27
53°
38°
28
53°
35°
29
55°
39°
30
64°
43°
31
63°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Chambersburg
Chambersburg's October 2026 forecast shows daily high temperatures ranging from 53° to 75°, with overnight lows between 35° and 53°. The average high for October is 63° with an average low of 45°. 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 Chambersburg. See also: November | December | January.
