S
M
T
W
T
F
S
30
86°
65°
31
73°
63°
1
69°
63°
2
72°
64°
3
73°
63°
4
85°
66°
5
73°
64°
6
68°
59°
7
82°
59°
8
81°
64°
9
76°
61°
10
87°
71°
11
79°
63°
12
71°
56°
13
70°
63°
14
74°
58°
15
66°
53°
16
80°
56°
17
76°
64°
18
80°
62°
19
63°
52°
20
63°
56°
21
66°
51°
22
62°
52°
23
62°
50°
24
61°
53°
25
60°
56°
26
64°
53°
27
67°
54°
28
67°
54°
29
66°
54°
30
67°
56°
1
65°
55°
2
66°
52°
3
63°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in East Cambridge
East Cambridge's September 2026 forecast shows daily high temperatures ranging from 60° to 67°, with overnight lows between 50° and 57°. The average high for September is 64° with an average low of 54°. 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 East Cambridge. See also: October | November | December.
