S
M
T
W
T
F
S
31
77°
47°
1
71°
49°
2
71°
47°
3
72°
50°
4
74°
54°
5
76°
59°
6
82°
52°
7
79°
52°
8
78°
54°
9
80°
55°
10
78°
58°
11
76°
53°
12
75°
49°
13
73°
50°
14
75°
52°
15
75°
53°
16
79°
54°
17
80°
53°
18
75°
58°
19
77°
63°
20
85°
64°
21
86°
64°
22
86°
63°
23
85°
62°
24
86°
64°
25
87°
63°
26
86°
62°
27
86°
64°
28
85°
65°
29
84°
57°
30
85°
56°
1
79°
57°
2
78°
63°
3
79°
64°
4
83°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Harrisburg
Harrisburg's June 2026 forecast shows daily high temperatures ranging from 71° to 87°, with overnight lows between 47° and 66°. The average high for June is 80° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Harrisburg. See also: July | August | September.