S
M
T
W
T
F
S
28
80°
65°
29
89°
63°
30
91°
62°
1
98°
70°
2
101°
71°
3
100°
74°
4
99°
71°
5
89°
71°
6
79°
67°
7
76°
66°
8
82°
66°
9
89°
69°
10
84°
68°
11
87°
67°
12
80°
64°
13
83°
65°
14
83°
65°
15
82°
63°
16
82°
64°
17
84°
63°
18
83°
65°
19
86°
68°
20
81°
61°
21
79°
61°
22
80°
62°
23
80°
62°
24
81°
63°
25
81°
63°
26
83°
66°
27
82°
67°
28
86°
68°
29
85°
68°
30
85°
67°
31
86°
68°
1
86°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Mount Gretna
Mount Gretna's July 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 61° and 71°. The average high for July is 83° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Mount Gretna. See also: August | September | October.
