S
M
T
W
T
F
S
30
81°
62°
31
80°
61°
1
72°
61°
2
75°
58°
3
78°
55°
4
80°
62°
5
80°
62°
6
79°
59°
7
78°
54°
8
73°
53°
9
74°
54°
10
77°
54°
11
77°
58°
12
76°
59°
13
72°
57°
14
76°
58°
15
75°
59°
16
77°
57°
17
75°
51°
18
68°
50°
19
66°
51°
20
68°
57°
21
67°
53°
22
67°
53°
23
68°
55°
24
66°
56°
25
67°
56°
26
72°
55°
27
73°
54°
28
72°
54°
29
69°
55°
30
65°
54°
1
64°
55°
2
65°
51°
3
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Johnston Town
Johnston Town's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 46° and 62°. The average high for September is 72° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Johnston Town. See also: October | November | December.
