S
M
T
W
T
F
S
30
81°
59°
31
78°
60°
1
81°
58°
2
76°
51°
3
72°
51°
4
80°
59°
5
81°
59°
6
81°
58°
7
80°
58°
8
81°
57°
9
79°
58°
10
78°
57°
11
70°
55°
12
72°
47°
13
70°
50°
14
76°
49°
15
72°
42°
16
68°
41°
17
66°
45°
18
66°
40°
19
65°
41°
20
66°
46°
21
66°
40°
22
68°
47°
23
72°
49°
24
74°
45°
25
75°
48°
26
74°
50°
27
75°
39°
28
66°
48°
29
69°
37°
30
64°
47°
1
71°
34°
2
70°
34°
3
57°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sparta
Sparta's September 2026 forecast shows daily high temperatures ranging from 57° to 81°, with overnight lows between 32° and 60°. The average high for September is 73° 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 Sparta. See also: October | November | December.
