S
M
T
W
T
F
S
30
89°
66°
31
92°
72°
1
96°
74°
2
95°
75°
3
95°
75°
4
97°
77°
5
95°
74°
6
83°
67°
7
84°
62°
8
89°
66°
9
90°
73°
10
80°
69°
11
84°
64°
12
84°
70°
13
86°
63°
14
78°
58°
15
93°
62°
16
93°
75°
17
93°
72°
18
83°
66°
19
90°
69°
20
85°
64°
21
78°
60°
22
70°
57°
23
73°
57°
24
75°
54°
25
72°
52°
26
73°
50°
27
76°
54°
28
78°
53°
29
75°
52°
30
74°
47°
1
76°
54°
2
72°
53°
3
71°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Martinsville
Martinsville's September 2026 forecast shows daily high temperatures ranging from 70° to 93°, with overnight lows between 47° and 72°. The average high for September is 77° with an average low of 57°. 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. See also: October | November | December.
