S
M
T
W
T
F
S
27
65°
58°
28
68°
60°
29
71°
62°
30
77°
63°
1
83°
62°
2
86°
60°
3
73°
56°
4
61°
56°
5
70°
51°
6
62°
45°
7
72°
41°
8
75°
44°
9
72°
46°
10
71°
54°
11
64°
61°
12
71°
58°
13
66°
47°
14
56°
41°
15
59°
46°
16
60°
44°
17
62°
48°
18
60°
43°
19
62°
47°
20
60°
42°
21
55°
42°
22
55°
42°
23
54°
37°
24
53°
35°
25
54°
37°
26
61°
42°
27
62°
34°
28
52°
34°
29
51°
33°
30
51°
34°
31
58°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Harrisburg
Harrisburg's October 2026 forecast shows daily high temperatures ranging from 51° to 75°, with overnight lows between 33° and 61°. The average high for October is 60° with an average low of 43°. 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 Harrisburg. See also: November | December | January.
