S
M
T
W
T
F
S
30
83°
65°
31
82°
68°
1
87°
69°
2
88°
67°
3
84°
64°
4
83°
64°
5
82°
61°
6
80°
59°
7
78°
54°
8
76°
57°
9
80°
55°
10
79°
53°
11
73°
50°
12
73°
52°
13
75°
52°
14
74°
49°
15
78°
54°
16
78°
54°
17
77°
53°
18
76°
53°
19
78°
55°
20
78°
55°
21
77°
54°
22
78°
54°
23
78°
53°
24
77°
54°
25
77°
53°
26
76°
51°
27
77°
52°
28
76°
52°
29
75°
50°
30
74°
50°
1
74°
49°
2
73°
51°
3
74°
49°
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 73° to 88°, with overnight lows between 49° and 69°. The average high for September is 78° with an average low of 55°. 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.
