S
M
T
W
T
F
S
30
84°
59°
31
77°
64°
1
69°
59°
2
76°
60°
3
81°
65°
4
85°
62°
5
75°
57°
6
73°
53°
7
79°
57°
8
81°
60°
9
77°
67°
10
82°
63°
11
75°
57°
12
72°
58°
13
76°
59°
14
78°
60°
15
75°
59°
16
76°
56°
17
77°
56°
18
70°
54°
19
75°
59°
20
74°
58°
21
72°
56°
22
71°
58°
23
72°
58°
24
73°
57°
25
69°
56°
26
73°
58°
27
75°
59°
28
74°
55°
29
67°
52°
30
68°
54°
1
67°
52°
2
64°
54°
3
65°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Warwick
Warwick's September 2026 forecast shows daily high temperatures ranging from 64° to 85°, with overnight lows between 52° and 67°. The average high for September is 74° with an average low of 57°. 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 Warwick. See also: October | November | December.