S
M
T
W
T
F
S
28
78°
63°
29
87°
66°
30
93°
71°
1
97°
71°
2
95°
68°
3
94°
68°
4
87°
63°
5
85°
62°
6
85°
64°
7
81°
60°
8
83°
61°
9
82°
63°
10
83°
58°
11
83°
61°
12
81°
61°
13
77°
55°
14
76°
54°
15
75°
54°
16
76°
55°
17
77°
56°
18
78°
57°
19
79°
61°
20
81°
62°
21
82°
62°
22
82°
61°
23
79°
62°
24
80°
61°
25
83°
62°
26
84°
63°
27
84°
63°
28
83°
62°
29
81°
60°
30
79°
56°
31
76°
55°
1
76°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Johnstown
Johnstown's July 2026 forecast shows daily high temperatures ranging from 75° to 97°, with overnight lows between 54° and 71°. The average high for July is 82° with an average low of 61°. 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 Johnstown. See also: August | September | October.
