S
M
T
W
T
F
S
30
88°
63°
31
92°
63°
1
94°
65°
2
95°
66°
3
97°
67°
4
97°
67°
5
92°
65°
6
83°
66°
7
84°
61°
8
85°
55°
9
89°
55°
10
91°
62°
11
90°
65°
12
81°
68°
13
89°
63°
14
88°
58°
15
80°
53°
16
85°
54°
17
88°
61°
18
87°
62°
19
83°
63°
20
80°
60°
21
76°
53°
22
74°
53°
23
76°
54°
24
78°
50°
25
78°
52°
26
77°
52°
27
80°
56°
28
80°
54°
29
79°
55°
30
80°
55°
1
77°
54°
2
79°
55°
3
80°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Martinsville Speedway
Martinsville Speedway's September 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 50° and 68°. The average high for September is 81° with an average low of 56°. 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 Martinsville Speedway. See also: October | November | December.
