S
M
T
W
T
F
S
30
104°
78°
31
102°
72°
1
101°
74°
2
101°
76°
3
94°
74°
4
101°
72°
5
102°
73°
6
103°
74°
7
104°
75°
8
104°
76°
9
105°
77°
10
85°
69°
11
95°
66°
12
96°
73°
13
98°
74°
14
99°
73°
15
102°
79°
16
101°
76°
17
100°
72°
18
101°
74°
19
99°
70°
20
94°
71°
21
86°
67°
22
88°
66°
23
92°
60°
24
92°
64°
25
92°
69°
26
89°
66°
27
94°
67°
28
94°
72°
29
87°
70°
30
79°
66°
1
71°
56°
2
76°
59°
3
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sparks
Sparks's September 2026 forecast shows daily high temperatures ranging from 71° to 94°, with overnight lows between 56° and 72°. The average high for September is 85° with an average low of 65°. 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 Sparks. See also: October | November | December.
