S
M
T
W
T
F
S
30
86°
65°
31
73°
63°
1
69°
63°
2
72°
64°
3
73°
63°
4
85°
66°
5
73°
64°
6
68°
59°
7
82°
59°
8
81°
64°
9
76°
61°
10
87°
71°
11
79°
63°
12
71°
56°
13
70°
63°
14
74°
58°
15
66°
53°
16
80°
56°
17
76°
64°
18
80°
51°
19
65°
48°
20
64°
56°
21
66°
53°
22
60°
53°
23
63°
52°
24
66°
50°
25
65°
52°
26
66°
50°
27
69°
50°
28
68°
49°
29
71°
53°
30
69°
53°
1
71°
49°
2
73°
53°
3
64°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Roxbury
Roxbury's September 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 48° and 56°. The average high for September is 68° with an average low of 52°. 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 Roxbury. See also: October | November | December.