S
M
T
W
T
F
S
30
88°
75°
31
88°
76°
1
88°
76°
2
88°
79°
3
86°
78°
4
92°
75°
5
93°
75°
6
93°
75°
7
90°
75°
8
88°
75°
9
89°
77°
10
90°
76°
11
93°
75°
12
91°
76°
13
90°
74°
14
91°
77°
15
89°
78°
16
87°
80°
17
87°
78°
18
87°
76°
19
87°
74°
20
87°
74°
21
84°
74°
22
88°
74°
23
87°
75°
24
86°
72°
25
83°
70°
26
84°
66°
27
86°
65°
28
84°
68°
29
86°
71°
30
85°
72°
1
84°
74°
2
87°
72°
3
86°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Daytona International Speedway
Daytona International Speedway's September 2026 forecast shows daily high temperatures ranging from 83° to 88°, with overnight lows between 65° and 75°. The average high for September is 86° with an average low of 71°. 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 Daytona International Speedway. See also: October | November | December.