S
M
T
W
T
F
S
30
86°
55°
31
77°
58°
1
78°
58°
2
77°
62°
3
83°
61°
4
81°
55°
5
77°
59°
6
81°
60°
7
82°
60°
8
81°
59°
9
81°
60°
10
80°
58°
11
78°
58°
12
74°
60°
13
81°
60°
14
80°
59°
15
Hist. Avg.
75°
55°
16
Hist. Avg.
75°
55°
17
Hist. Avg.
75°
55°
18
Hist. Avg.
74°
54°
19
Hist. Avg.
74°
54°
20
Hist. Avg.
74°
54°
21
Hist. Avg.
73°
54°
22
Hist. Avg.
73°
53°
23
Hist. Avg.
73°
53°
24
Hist. Avg.
72°
53°
25
Hist. Avg.
72°
52°
26
Hist. Avg.
72°
52°
27
Hist. Avg.
71°
52°
28
Hist. Avg.
71°
51°
29
Hist. Avg.
70°
51°
30
Hist. Avg.
70°
51°
1
Hist. Avg.
70°
50°
2
Hist. Avg.
69°
50°
3
Hist. Avg.
69°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Weirton
Weirton's September 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 55° and 62°. The average high for September is 80° with an average low of 59°. 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 Weirton. See also: October | November | December.
