S
M
T
W
T
F
S
31
79°
65°
1
85°
62°
2
80°
57°
3
80°
60°
4
84°
65°
5
81°
68°
6
81°
68°
7
82°
65°
8
85°
67°
9
84°
65°
10
84°
67°
11
84°
64°
12
83°
63°
13
84°
64°
14
83°
62°
15
86°
60°
16
76°
60°
17
76°
59°
18
78°
65°
19
78°
67°
20
79°
67°
21
82°
66°
22
81°
67°
23
81°
65°
24
84°
68°
25
86°
68°
26
88°
69°
27
85°
68°
28
84°
69°
29
84°
69°
30
82°
68°
1
82°
69°
2
83°
70°
3
86°
69°
4
83°
64°
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 76° to 88°, with overnight lows between 57° and 70°. The average high for June is 82° with an average low of 65°. 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.