S
M
T
W
T
F
S
30
76°
63°
31
82°
65°
1
81°
57°
2
82°
58°
3
75°
57°
4
76°
58°
5
76°
65°
6
79°
63°
7
82°
58°
8
75°
62°
9
74°
63°
10
76°
62°
11
77°
61°
12
78°
60°
13
75°
61°
14
72°
55°
15
73°
54°
16
72°
54°
17
72°
55°
18
73°
59°
19
76°
59°
20
74°
60°
21
76°
57°
22
72°
52°
23
70°
57°
24
69°
59°
25
75°
53°
26
74°
50°
27
Hist. Avg.
71°
53°
28
Hist. Avg.
70°
53°
29
Hist. Avg.
70°
52°
30
Hist. Avg.
70°
52°
1
Hist. Avg.
69°
52°
2
Hist. Avg.
69°
51°
3
Hist. Avg.
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Fair Haven
Fair Haven's September 2026 forecast shows daily high temperatures ranging from 69° to 82°, with overnight lows between 50° and 65°. The average high for September is 75° with an average low of 58°. 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 Fair Haven. See also: October | November | December.