S
M
T
W
T
F
S
30
75°
62°
31
75°
64°
1
80°
65°
2
80°
63°
3
79°
58°
4
79°
63°
5
78°
58°
6
78°
58°
7
72°
61°
8
71°
62°
9
72°
57°
10
77°
55°
11
72°
61°
12
73°
57°
13
77°
56°
14
72°
56°
15
70°
60°
16
71°
54°
17
70°
53°
18
Hist. Avg.
72°
59°
19
Hist. Avg.
72°
58°
20
Hist. Avg.
72°
58°
21
Hist. Avg.
71°
58°
22
Hist. Avg.
71°
58°
23
Hist. Avg.
71°
57°
24
Hist. Avg.
70°
57°
25
Hist. Avg.
70°
56°
26
Hist. Avg.
70°
56°
27
Hist. Avg.
69°
56°
28
Hist. Avg.
69°
55°
29
Hist. Avg.
69°
55°
30
Hist. Avg.
68°
55°
1
Hist. Avg.
68°
54°
2
Hist. Avg.
68°
54°
3
Hist. Avg.
67°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Prudence Island
Prudence Island's September 2026 forecast shows daily high temperatures ranging from 70° to 80°, with overnight lows between 53° and 65°. The average high for September is 75° 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 Prudence Island. See also: October | November | December.
