S
M
T
W
T
F
S
30
85°
45°
31
73°
50°
1
78°
49°
2
78°
45°
3
75°
44°
4
81°
47°
5
80°
46°
6
78°
43°
7
76°
42°
8
75°
42°
9
71°
43°
10
71°
45°
11
70°
48°
12
75°
51°
13
79°
50°
14
77°
49°
15
76°
50°
16
79°
48°
17
77°
41°
18
69°
41°
19
68°
40°
20
74°
45°
21
76°
43°
22
75°
45°
23
73°
50°
24
75°
48°
25
67°
42°
26
65°
47°
27
67°
42°
28
62°
37°
29
60°
43°
30
64°
49°
1
63°
50°
2
65°
38°
3
66°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sunshine
Sunshine's September 2026 forecast shows daily high temperatures ranging from 60° to 85°, with overnight lows between 35° and 51°. The average high for September is 73° with an average low of 45°. 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 Sunshine. See also: October | November | December.