S
M
T
W
T
F
S
28
80°
65°
29
89°
63°
30
93°
72°
1
99°
74°
2
101°
78°
3
98°
75°
4
96°
75°
5
92°
68°
6
89°
68°
7
85°
63°
8
84°
64°
9
86°
66°
10
86°
67°
11
85°
67°
12
86°
66°
13
87°
64°
14
79°
61°
15
79°
60°
16
80°
61°
17
80°
62°
18
81°
62°
19
81°
66°
20
83°
68°
21
82°
68°
22
86°
67°
23
81°
68°
24
83°
68°
25
86°
67°
26
87°
68°
27
87°
68°
28
86°
67°
29
84°
68°
30
85°
62°
31
79°
61°
1
79°
61°
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 79° to 101°, with overnight lows between 60° and 78°. The average high for July is 86° 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 July weather will actually feel in Mount Gretna. See also: August | September | October.
