S
M
T
W
T
F
S
30
77°
63°
31
77°
65°
1
82°
65°
2
82°
63°
3
81°
59°
4
81°
64°
5
80°
58°
6
80°
58°
7
74°
62°
8
73°
63°
9
74°
57°
10
79°
55°
11
74°
62°
12
75°
57°
13
79°
57°
14
74°
56°
15
72°
60°
16
72°
54°
17
79°
53°
18
74°
56°
19
Hist. Avg.
74°
55°
20
Hist. Avg.
73°
55°
21
Hist. Avg.
73°
55°
22
Hist. Avg.
73°
54°
23
Hist. Avg.
72°
54°
24
Hist. Avg.
72°
53°
25
Hist. Avg.
71°
53°
26
Hist. Avg.
71°
53°
27
Hist. Avg.
71°
52°
28
Hist. Avg.
70°
52°
29
Hist. Avg.
70°
51°
30
Hist. Avg.
70°
51°
1
Hist. Avg.
69°
51°
2
Hist. Avg.
69°
50°
3
Hist. Avg.
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cranston
Cranston's September 2026 forecast shows daily high temperatures ranging from 72° to 82°, with overnight lows between 53° and 65°. The average high for September is 77° with an average low of 59°. 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.
