S
M
T
W
T
F
S
27
81°
59°
28
83°
60°
29
81°
64°
30
85°
60°
1
83°
62°
2
83°
62°
3
84°
61°
4
84°
62°
5
78°
62°
6
76°
59°
7
79°
60°
8
83°
61°
9
84°
60°
10
84°
60°
11
81°
59°
12
79°
59°
13
81°
58°
14
82°
58°
15
81°
57°
16
79°
56°
17
80°
49°
18
79°
47°
19
72°
48°
20
72°
47°
21
71°
50°
22
71°
54°
23
77°
48°
24
77°
44°
25
68°
45°
26
67°
46°
27
69°
52°
28
69°
50°
29
74°
42°
30
68°
43°
31
67°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Johnston
Johnston's October 2026 forecast shows daily high temperatures ranging from 67° to 85°, with overnight lows between 42° and 64°. The average high for October is 77° with an average low of 55°. 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 Johnston. See also: November | December | January.
