S
M
T
W
T
F
S
31
91°
58°
1
95°
62°
2
98°
67°
3
100°
68°
4
103°
72°
5
103°
71°
6
100°
71°
7
94°
63°
8
95°
62°
9
94°
61°
10
100°
66°
11
100°
66°
12
101°
67°
13
103°
69°
14
104°
68°
15
93°
61°
16
87°
57°
17
89°
66°
18
93°
66°
19
98°
68°
20
98°
68°
21
97°
67°
22
99°
68°
23
100°
69°
24
99°
69°
25
99°
68°
26
98°
69°
27
99°
68°
28
98°
69°
29
96°
68°
30
99°
69°
1
100°
71°
2
99°
71°
3
100°
70°
4
100°
70°
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 87° to 104°, with overnight lows between 57° and 72°. The average high for June is 98° with an average low of 67°. 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.
