S
M
T
W
T
F
S
27
62°
55°
28
58°
55°
29
60°
54°
30
68°
54°
1
67°
55°
2
73°
52°
3
65°
44°
4
62°
39°
5
58°
41°
6
54°
33°
7
65°
32°
8
64°
45°
9
60°
41°
10
58°
37°
11
52°
43°
12
58°
48°
13
70°
55°
14
61°
48°
15
57°
43°
16
66°
43°
17
44°
31°
18
57°
29°
19
65°
31°
20
63°
36°
21
61°
26°
22
64°
29°
23
53°
28°
24
57°
30°
25
62°
37°
26
61°
39°
27
53°
34°
28
46°
35°
29
52°
36°
30
52°
35°
31
48°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Johnstown
Johnstown's October 2026 forecast shows daily high temperatures ranging from 46° to 64°, with overnight lows between 26° and 39°. The average high for October is 55° with an average low of 33°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Johnstown. See also: November | December | January.