S
M
T
W
T
F
S
30
91°
70°
31
90°
69°
1
92°
71°
2
91°
70°
3
90°
71°
4
88°
70°
5
88°
69°
6
90°
70°
7
91°
72°
8
91°
71°
9
90°
70°
10
91°
70°
11
91°
69°
12
90°
69°
13
90°
70°
14
89°
70°
15
90°
69°
16
89°
70°
17
90°
70°
18
88°
69°
19
87°
69°
20
88°
70°
21
89°
68°
22
85°
69°
23
88°
69°
24
85°
67°
25
88°
68°
26
Hist. Avg.
88°
66°
27
Hist. Avg.
88°
65°
28
Hist. Avg.
88°
65°
29
Hist. Avg.
88°
65°
30
Hist. Avg.
87°
64°
1
Hist. Avg.
87°
64°
2
Hist. Avg.
87°
64°
3
Hist. Avg.
87°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Branford
Branford's September 2026 forecast shows daily high temperatures ranging from 85° to 92°, with overnight lows between 67° and 72°. The average high for September is 89° with an average low of 70°. 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 Branford. See also: October | November | December.