S
M
T
W
T
F
S
27
87°
64°
28
86°
60°
29
91°
55°
30
97°
60°
1
95°
70°
2
76°
66°
3
73°
64°
4
84°
59°
5
84°
57°
6
83°
54°
7
88°
50°
8
95°
60°
9
94°
62°
10
75°
60°
11
83°
60°
12
91°
64°
13
86°
63°
14
83°
64°
15
76°
58°
16
73°
53°
17
68°
50°
18
67°
47°
19
69°
51°
20
72°
53°
21
71°
48°
22
64°
48°
23
64°
45°
24
65°
43°
25
67°
45°
26
73°
51°
27
73°
49°
28
69°
45°
29
61°
42°
30
67°
49°
31
71°
50°
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 61° to 95°, with overnight lows between 42° and 64°. The average high for October is 74° with an average low of 53°. 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.
