S
M
T
W
T
F
S
30
76°
64°
31
80°
65°
1
81°
65°
2
82°
64°
3
82°
58°
4
80°
56°
5
74°
57°
6
74°
62°
7
75°
62°
8
80°
63°
9
79°
62°
10
78°
61°
11
79°
60°
12
79°
60°
13
78°
61°
14
78°
62°
15
79°
62°
16
79°
57°
17
77°
61°
18
75°
58°
19
77°
55°
20
72°
52°
21
69°
50°
22
69°
56°
23
70°
55°
24
74°
51°
25
68°
49°
26
67°
50°
27
68°
54°
28
72°
56°
29
73°
52°
30
72°
51°
1
65°
54°
2
66°
47°
3
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Watch Hill
Watch Hill's September 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 47° and 65°. The average high for September is 75° 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 Watch Hill. See also: October | November | December.
