S
M
T
W
T
F
S
27
83°
59°
28
84°
61°
29
84°
61°
30
83°
60°
1
82°
60°
2
82°
58°
3
81°
59°
4
82°
58°
5
82°
60°
6
81°
59°
7
79°
59°
8
80°
58°
9
81°
58°
10
80°
57°
11
80°
56°
12
79°
53°
13
70°
51°
14
67°
46°
15
67°
44°
16
68°
43°
17
68°
45°
18
73°
47°
19
67°
42°
20
66°
42°
21
67°
46°
22
66°
47°
23
78°
53°
24
77°
53°
25
78°
52°
26
79°
46°
27
76°
38°
28
65°
39°
29
64°
46°
30
63°
49°
31
67°
47°
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 63° to 84°, with overnight lows between 38° and 61°. The average high for October is 75° 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 Harrisburg. See also: November | December | January.
