S
M
T
W
T
F
S
30
71°
55°
31
71°
55°
1
72°
56°
2
71°
59°
3
71°
56°
4
72°
60°
5
71°
61°
6
73°
62°
7
78°
62°
8
77°
61°
9
76°
60°
10
73°
60°
11
75°
61°
12
72°
60°
13
72°
59°
14
68°
58°
15
67°
57°
16
66°
57°
17
66°
56°
18
67°
57°
19
68°
56°
20
67°
55°
21
76°
56°
22
75°
50°
23
72°
47°
24
65°
46°
25
64°
54°
26
66°
53°
27
68°
54°
28
71°
53°
29
71°
51°
30
70°
51°
1
69°
53°
2
69°
51°
3
70°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Worcester
Worcester's September 2026 forecast shows daily high temperatures ranging from 64° to 78°, with overnight lows between 46° and 62°. The average high for September is 71° with an average low of 56°. 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 Worcester. See also: October | November | December.
