S
M
T
W
T
F
S
26
85°
62°
27
88°
63°
28
81°
67°
29
80°
67°
30
81°
66°
31
84°
65°
1
84°
67°
2
84°
67°
3
81°
69°
4
86°
68°
5
87°
67°
6
88°
69°
7
86°
69°
8
87°
67°
9
85°
68°
10
86°
65°
11
87°
68°
12
83°
67°
13
83°
68°
14
85°
67°
15
82°
63°
16
81°
66°
17
81°
67°
18
79°
67°
19
82°
66°
20
83°
66°
21
82°
65°
22
82°
65°
23
84°
67°
24
86°
62°
25
79°
59°
26
80°
66°
27
86°
67°
28
87°
67°
29
87°
66°
30
86°
65°
31
83°
58°
1
77°
57°
2
76°
57°
3
76°
58°
4
81°
64°
5
83°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mount Joy
Mount Joy's August 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 57° and 69°. The average high for August is 83° 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 August weather will actually feel in Mount Joy. See also: September | October | November.
