S
M
T
W
T
F
S
30
79°
62°
31
88°
70°
1
88°
70°
2
92°
73°
3
85°
68°
4
80°
65°
5
79°
59°
6
75°
60°
7
78°
57°
8
72°
56°
9
73°
58°
10
78°
58°
11
73°
55°
12
75°
54°
13
73°
55°
14
72°
54°
15
77°
60°
16
76°
59°
17
76°
58°
18
71°
55°
19
75°
59°
20
77°
60°
21
77°
60°
22
76°
59°
23
77°
59°
24
77°
58°
25
76°
57°
26
74°
56°
27
75°
57°
28
75°
56°
29
74°
55°
30
72°
54°
1
72°
54°
2
71°
55°
3
73°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Boston Heights
Boston Heights's September 2026 forecast shows daily high temperatures ranging from 71° to 92°, with overnight lows between 54° and 73°. The average high for September is 76° 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 Boston Heights. See also: October | November | December.