S
M
T
W
T
F
S
30
75°
56°
31
73°
56°
1
68°
63°
2
67°
60°
3
78°
61°
4
78°
59°
5
72°
58°
6
70°
53°
7
75°
49°
8
76°
51°
9
71°
56°
10
75°
59°
11
70°
49°
12
73°
45°
13
75°
60°
14
66°
50°
15
65°
42°
16
72°
53°
17
73°
58°
18
69°
44°
19
64°
51°
20
61°
49°
21
61°
45°
22
53°
47°
23
55°
50°
24
58°
49°
25
59°
48°
26
60°
46°
27
63°
51°
28
60°
51°
29
61°
49°
30
62°
45°
1
60°
50°
2
58°
46°
3
56°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Westford
Westford's September 2026 forecast shows daily high temperatures ranging from 53° to 73°, with overnight lows between 44° and 58°. The average high for September is 61° with an average low of 49°. 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 Westford. See also: October | November | December.
