S
M
T
W
T
F
S
30
91°
63°
31
90°
66°
1
96°
71°
2
93°
70°
3
95°
70°
4
93°
68°
5
86°
68°
6
79°
55°
7
82°
54°
8
86°
59°
9
90°
68°
10
N/A
11
82°
68°
12
82°
66°
13
87°
63°
14
85°
64°
15
86°
67°
16
85°
67°
17
80°
63°
18
75°
57°
19
75°
49°
20
74°
52°
21
71°
52°
22
72°
55°
23
71°
51°
24
79°
55°
25
74°
55°
26
78°
55°
27
78°
56°
28
77°
55°
29
74°
54°
30
74°
55°
1
73°
51°
2
68°
53°
3
76°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Clarksburg
Clarksburg's September 2026 forecast shows daily high temperatures ranging from 68° to 87°, with overnight lows between 49° and 68°. 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 Clarksburg. See also: October | November | December.
