S
M
T
W
T
F
S
30
94°
71°
31
97°
73°
1
98°
71°
2
98°
73°
3
97°
73°
4
93°
73°
5
95°
73°
6
93°
72°
7
88°
69°
8
89°
68°
9
89°
69°
10
95°
68°
11
96°
69°
12
89°
68°
13
89°
67°
14
88°
67°
15
90°
66°
16
87°
62°
17
82°
64°
18
80°
65°
19
81°
65°
20
83°
64°
21
84°
65°
22
83°
64°
23
84°
64°
24
84°
63°
25
79°
63°
26
82°
62°
27
84°
61°
28
82°
55°
29
76°
53°
30
76°
53°
1
77°
56°
2
75°
60°
3
74°
58°
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 74° to 97°, with overnight lows between 53° and 73°. The average high for September is 85° with an average low of 64°. 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.
