S
M
T
W
T
F
S
30
104°
73°
31
104°
79°
1
106°
73°
2
100°
74°
3
100°
75°
4
99°
75°
5
102°
73°
6
102°
74°
7
102°
71°
8
100°
73°
9
100°
73°
10
97°
72°
11
99°
71°
12
92°
68°
13
93°
68°
14
88°
65°
15
85°
59°
16
89°
64°
17
88°
64°
18
80°
59°
19
83°
63°
20
87°
64°
21
87°
63°
22
86°
62°
23
87°
62°
24
86°
61°
25
87°
61°
26
84°
58°
27
76°
51°
28
76°
50°
29
74°
50°
30
80°
54°
1
83°
57°
2
83°
52°
3
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in West Hartford
West Hartford's September 2026 forecast shows daily high temperatures ranging from 72° to 102°, with overnight lows between 50° and 75°. The average high for September is 89° 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 West Hartford. See also: October | November | December.
