S
M
T
W
T
F
S
30
88°
70°
31
92°
67°
1
94°
69°
2
94°
71°
3
96°
70°
4
95°
72°
5
94°
70°
6
84°
68°
7
78°
66°
8
82°
67°
9
84°
68°
10
90°
69°
11
89°
69°
12
85°
68°
13
84°
66°
14
85°
67°
15
84°
62°
16
76°
65°
17
75°
65°
18
73°
65°
19
75°
65°
20
75°
64°
21
76°
65°
22
75°
65°
23
79°
64°
24
75°
64°
25
73°
63°
26
75°
64°
27
78°
60°
28
76°
54°
29
70°
53°
30
71°
53°
1
70°
56°
2
71°
60°
3
70°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Campobello
Campobello's September 2026 forecast shows daily high temperatures ranging from 70° to 96°, with overnight lows between 53° and 72°. The average high for September is 80° with an average low of 64°. 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 Campobello. See also: October | November | December.
