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
63°
53°
5
69°
46°
6
65°
42°
7
73°
51°
8
74°
49°
9
72°
50°
10
68°
48°
11
67°
51°
12
66°
52°
13
66°
50°
14
62°
45°
15
62°
47°
16
63°
48°
17
62°
43°
18
65°
49°
19
56°
40°
20
59°
37°
21
55°
42°
22
55°
42°
23
56°
37°
24
58°
44°
25
54°
41°
26
53°
40°
27
52°
36°
28
52°
36°
29
53°
38°
30
61°
42°
31
62°
43°
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 52° to 74°, with overnight lows between 36° and 53°. The average high for October is 62° with an average low of 44°. 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.
