S
M
T
W
T
F
S
30
72°
55°
31
70°
54°
1
70°
50°
2
68°
59°
3
75°
64°
4
66°
55°
5
70°
54°
6
77°
54°
7
70°
59°
8
63°
54°
9
63°
54°
10
64°
48°
11
68°
52°
12
70°
50°
13
72°
63°
14
N/A
15
69°
48°
16
67°
53°
17
66°
46°
18
64°
58°
19
70°
50°
20
68°
53°
21
72°
54°
22
71°
53°
23
70°
54°
24
68°
52°
25
68°
49°
26
66°
50°
27
63°
50°
28
64°
51°
29
63°
50°
30
63°
48°
1
62°
46°
2
63°
48°
3
63°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Worcester
Worcester's September 2026 forecast shows daily high temperatures ranging from 62° to 72°, with overnight lows between 46° and 58°. The average high for September is 66° with an average low of 51°. 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.
