S
M
T
W
T
F
S
31
75°
44°
1
77°
49°
2
75°
47°
3
82°
48°
4
86°
49°
5
88°
54°
6
86°
61°
7
84°
62°
8
75°
57°
9
82°
59°
10
84°
66°
11
92°
68°
12
92°
69°
13
86°
62°
14
88°
58°
15
76°
61°
16
76°
49°
17
83°
53°
18
83°
71°
19
81°
65°
20
81°
62°
21
82°
56°
22
76°
61°
23
74°
61°
24
82°
54°
25
82°
54°
26
81°
65°
27
75°
67°
28
83°
66°
29
89°
67°
30
91°
69°
1
102°
73°
2
103°
74°
3
101°
71°
4
96°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Mount Gretna
Mount Gretna's June 2026 forecast shows daily high temperatures ranging from 75° to 103°, with overnight lows between 66° and 74°. The average high for June is 93° with an average low of 69°. 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 Mount Gretna. See also: July | August | September.
