S
M
T
W
T
F
S
30
75°
50°
31
73°
51°
1
79°
46°
2
75°
54°
3
67°
53°
4
61°
46°
5
51°
47°
6
59°
49°
7
56°
52°
8
71°
45°
9
76°
52°
10
62°
42°
11
56°
40°
12
52°
42°
13
58°
36°
14
58°
42°
15
49°
35°
16
64°
38°
17
67°
43°
18
67°
47°
19
69°
46°
20
72°
48°
21
76°
50°
22
70°
46°
23
65°
45°
24
67°
45°
25
62°
43°
26
61°
45°
27
64°
43°
28
63°
37°
29
56°
38°
30
56°
38°
1
57°
39°
2
57°
35°
3
54°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cranston
Cranston's September 2026 forecast shows daily high temperatures ranging from 49° to 76°, with overnight lows between 32° and 50°. The average high for September is 63° with an average low of 42°. 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 Cranston. See also: October | November | December.
