S
M
T
W
T
F
S
30
91°
71°
31
93°
66°
1
94°
71°
2
97°
68°
3
99°
68°
4
99°
68°
5
93°
68°
6
93°
68°
7
87°
67°
8
89°
64°
9
89°
68°
10
86°
69°
11
84°
66°
12
85°
65°
13
87°
64°
14
88°
65°
15
84°
62°
16
83°
62°
17
85°
64°
18
83°
62°
19
81°
59°
20
79°
55°
21
86°
62°
22
83°
61°
23
84°
62°
24
84°
62°
25
83°
61°
26
84°
61°
27
84°
60°
28
83°
61°
29
83°
61°
30
82°
60°
1
83°
59°
2
80°
52°
3
70°
48°
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 70° to 89°, with overnight lows between 48° and 69°. The average high for September is 84° with an average low of 62°. 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.
