S
M
T
W
T
F
S
30
70°
54°
31
70°
54°
1
71°
53°
2
71°
54°
3
70°
51°
4
71°
52°
5
70°
54°
6
69°
53°
7
70°
54°
8
69°
53°
9
69°
52°
10
67°
50°
11
68°
53°
12
68°
52°
13
67°
51°
14
65°
52°
15
65°
52°
16
66°
51°
17
67°
47°
18
63°
52°
19
62°
51°
20
65°
52°
21
66°
51°
22
67°
49°
23
63°
47°
24
63°
51°
25
Hist. Avg.
59°
49°
26
Hist. Avg.
59°
49°
27
Hist. Avg.
59°
49°
28
Hist. Avg.
59°
49°
29
Hist. Avg.
58°
49°
30
Hist. Avg.
58°
48°
1
Hist. Avg.
58°
48°
2
Hist. Avg.
58°
48°
3
Hist. Avg.
58°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Widnes
Widnes's September 2026 forecast shows daily high temperatures ranging from 62° to 71°, with overnight lows between 47° and 54°. The average high for September is 67° with an average low of 52°. 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 Widnes. See also: October | November | December.
