S
M
T
W
T
F
S
30
85°
44°
31
86°
50°
1
80°
55°
2
70°
54°
3
74°
55°
4
71°
54°
5
76°
46°
6
79°
46°
7
78°
47°
8
84°
47°
9
90°
49°
10
90°
54°
11
87°
57°
12
85°
52°
13
78°
44°
14
77°
46°
15
84°
48°
16
82°
49°
17
76°
45°
18
81°
45°
19
84°
49°
20
85°
49°
21
83°
48°
22
80°
46°
23
82°
47°
24
80°
49°
25
83°
47°
26
80°
43°
27
73°
40°
28
72°
39°
29
72°
42°
30
73°
45°
1
78°
47°
2
78°
44°
3
77°
44°
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 72° to 85°, with overnight lows between 39° and 49°. The average high for September is 79° with an average low of 46°. 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.
