S
M
T
W
T
F
S
30
73°
52°
31
68°
49°
1
68°
51°
2
67°
50°
3
68°
53°
4
71°
56°
5
76°
57°
6
75°
57°
7
73°
51°
8
75°
51°
9
68°
56°
10
74°
50°
11
76°
49°
12
70°
55°
13
74°
52°
14
74°
42°
15
71°
40°
16
60°
41°
17
62°
43°
18
65°
50°
19
65°
52°
20
67°
52°
21
67°
51°
22
71°
51°
23
70°
52°
24
70°
52°
25
72°
51°
26
72°
52°
27
70°
38°
28
70°
36°
29
57°
39°
30
56°
38°
1
55°
39°
2
57°
40°
3
58°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Uxbridge
Uxbridge's September 2026 forecast shows daily high temperatures ranging from 55° to 76°, with overnight lows between 36° and 57°. The average high for September is 68° with an average low of 48°. 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 Uxbridge. See also: October | November | December.