S
M
T
W
T
F
S
30
88°
66°
31
84°
52°
1
77°
48°
2
85°
63°
3
96°
65°
4
90°
59°
5
92°
70°
6
83°
65°
7
79°
65°
8
87°
54°
9
80°
51°
10
86°
44°
11
86°
57°
12
70°
44°
13
71°
43°
14
71°
50°
15
72°
50°
16
72°
45°
17
74°
58°
18
64°
60°
19
63°
57°
20
66°
49°
21
65°
42°
22
63°
45°
23
67°
55°
24
69°
61°
25
63°
59°
26
69°
56°
27
69°
59°
28
70°
52°
29
64°
50°
30
71°
45°
1
66°
45°
2
65°
46°
3
59°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Roscoe
Roscoe's September 2026 forecast shows daily high temperatures ranging from 59° to 71°, with overnight lows between 39° and 59°. The average high for September is 66° with an average low of 50°. 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 Roscoe. See also: October | November | December.
