S
M
T
W
T
F
S
30
71°
54°
31
76°
53°
1
77°
54°
2
78°
46°
3
74°
45°
4
69°
51°
5
69°
53°
6
76°
45°
7
71°
43°
8
66°
43°
9
67°
48°
10
69°
51°
11
70°
52°
12
75°
50°
13
74°
44°
14
66°
42°
15
63°
41°
16
63°
45°
17
64°
41°
18
63°
40°
19
65°
37°
20
61°
38°
21
61°
46°
22
62°
42°
23
69°
39°
24
65°
46°
25
68°
47°
26
64°
47°
27
69°
43°
28
69°
37°
29
66°
41°
30
57°
43°
1
62°
41°
2
65°
43°
3
61°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Westboro
Westboro's September 2026 forecast shows daily high temperatures ranging from 57° to 78°, with overnight lows between 37° and 54°. The average high for September is 68° with an average low of 45°. 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 Westboro. See also: October | November | December.
