S
M
T
W
T
F
S
30
80°
61°
31
78°
60°
1
80°
57°
2
72°
54°
3
72°
56°
4
73°
55°
5
72°
53°
6
74°
59°
7
76°
59°
8
72°
58°
9
71°
58°
10
75°
59°
11
78°
58°
12
78°
59°
13
77°
59°
14
77°
49°
15
71°
49°
16
67°
49°
17
69°
48°
18
77°
55°
19
77°
56°
20
75°
54°
21
76°
48°
22
74°
45°
23
66°
44°
24
65°
44°
25
66°
53°
26
70°
52°
27
72°
52°
28
71°
51°
29
72°
51°
30
72°
50°
1
73°
51°
2
71°
45°
3
72°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Needham
Needham's September 2026 forecast shows daily high temperatures ranging from 65° to 80°, with overnight lows between 42° and 61°. The average high for September is 73° with an average low of 53°. 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 Needham. See also: October | November | December.
