S
M
T
W
T
F
S
30
85°
63°
31
84°
56°
1
81°
55°
2
78°
57°
3
77°
56°
4
78°
56°
5
77°
55°
6
76°
55°
7
76°
56°
8
77°
55°
9
76°
57°
10
74°
54°
11
76°
54°
12
77°
56°
13
75°
55°
14
77°
54°
15
74°
53°
16
74°
53°
17
72°
52°
18
73°
53°
19
73°
57°
20
75°
56°
21
76°
49°
22
70°
49°
23
Hist. Avg.
72°
55°
24
Hist. Avg.
72°
54°
25
Hist. Avg.
72°
54°
26
Hist. Avg.
71°
54°
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 Hamden
Hamden's September 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 49° and 63°. The average high for September is 76° with an average low of 55°. 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 Hamden. See also: October | November | December.
