S
M
T
W
T
F
S
31
88°
63°
1
88°
58°
2
87°
58°
3
83°
59°
4
81°
57°
5
81°
57°
6
82°
59°
7
84°
64°
8
85°
63°
9
83°
61°
10
83°
64°
11
91°
66°
12
84°
61°
13
88°
60°
14
88°
59°
15
83°
61°
16
85°
62°
17
86°
63°
18
87°
62°
19
86°
63°
20
90°
63°
21
94°
67°
22
93°
66°
23
94°
65°
24
93°
64°
25
93°
68°
26
92°
70°
27
93°
70°
28
93°
69°
29
92°
69°
30
93°
70°
1
92°
71°
2
94°
68°
3
93°
71°
4
93°
69°
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 81° to 94°, with overnight lows between 57° and 71°. The average high for June is 88° with an average low of 64°. 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.