S
M
T
W
T
F
S
30
90°
66°
31
91°
68°
1
93°
70°
2
94°
69°
3
96°
70°
4
97°
71°
5
89°
68°
6
84°
63°
7
87°
63°
8
86°
65°
9
90°
68°
10
88°
65°
11
79°
58°
12
80°
57°
13
83°
60°
14
83°
58°
15
82°
57°
16
84°
59°
17
86°
56°
18
74°
61°
19
82°
60°
20
81°
61°
21
78°
60°
22
79°
60°
23
77°
57°
24
75°
58°
25
78°
59°
26
79°
58°
27
76°
52°
28
69°
47°
29
67°
47°
30
69°
48°
1
68°
48°
2
72°
55°
3
73°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Nitro
Nitro's September 2026 forecast shows daily high temperatures ranging from 67° to 97°, with overnight lows between 47° and 71°. The average high for September is 80° with an average low of 58°. 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 Nitro. See also: October | November | December.
