S
M
T
W
T
F
S
30
84°
55°
31
80°
53°
1
77°
52°
2
77°
53°
3
78°
54°
4
78°
53°
5
76°
54°
6
75°
59°
7
76°
58°
8
81°
53°
9
75°
52°
10
75°
51°
11
74°
51°
12
75°
54°
13
74°
53°
14
73°
50°
15
74°
56°
16
74°
49°
17
76°
50°
18
76°
50°
19
74°
56°
20
74°
51°
21
76°
50°
22
Hist. Avg.
77°
51°
23
Hist. Avg.
76°
50°
24
Hist. Avg.
76°
50°
25
Hist. Avg.
76°
50°
26
Hist. Avg.
75°
49°
27
Hist. Avg.
75°
49°
28
Hist. Avg.
74°
48°
29
Hist. Avg.
74°
48°
30
Hist. Avg.
73°
47°
1
Hist. Avg.
73°
47°
2
Hist. Avg.
72°
46°
3
Hist. Avg.
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in West Jefferson
West Jefferson's September 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 49° and 59°. The average high for September is 76° with an average low of 53°. 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 West Jefferson. See also: October | November | December.