S
M
T
W
T
F
S
27
81°
48°
28
83°
44°
29
85°
46°
30
92°
56°
1
92°
69°
2
71°
59°
3
76°
52°
4
81°
51°
5
77°
48°
6
78°
44°
7
85°
44°
8
85°
50°
9
89°
47°
10
71°
54°
11
83°
56°
12
89°
55°
13
90°
57°
14
76°
67°
15
87°
69°
16
75°
50°
17
59°
38°
18
66°
34°
19
72°
38°
20
73°
42°
21
75°
40°
22
76°
41°
23
74°
42°
24
75°
41°
25
77°
46°
26
76°
43°
27
72°
48°
28
78°
46°
29
78°
48°
30
80°
56°
31
75°
60°
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 72° to 80°, with overnight lows between 43° and 60°. The average high for October is 77° with an average low of 50°. 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.
