S
M
T
W
T
F
S
30
88°
64°
31
92°
70°
1
96°
73°
2
96°
74°
3
95°
71°
4
93°
72°
5
90°
68°
6
83°
65°
7
82°
65°
8
81°
61°
9
80°
63°
10
83°
62°
11
78°
57°
12
77°
57°
13
76°
59°
14
78°
58°
15
81°
62°
16
81°
63°
17
80°
62°
18
81°
62°
19
82°
63°
20
82°
63°
21
81°
62°
22
81°
62°
23
80°
61°
24
82°
61°
25
82°
60°
26
81°
59°
27
80°
60°
28
80°
60°
29
79°
59°
30
78°
58°
1
78°
57°
2
76°
57°
3
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Speedway
Speedway's September 2026 forecast shows daily high temperatures ranging from 76° to 96°, with overnight lows between 56° and 74°. The average high for September is 82° 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 Speedway. See also: October | November | December.
