S
M
T
W
T
F
S
30
67°
50°
31
69°
44°
1
74°
42°
2
77°
52°
3
67°
58°
4
72°
61°
5
63°
53°
6
71°
47°
7
78°
47°
8
62°
42°
9
69°
39°
10
64°
50°
11
63°
43°
12
75°
40°
13
72°
55°
14
60°
38°
15
64°
36°
16
71°
46°
17
61°
45°
18
58°
44°
19
55°
42°
20
52°
41°
21
52°
40°
22
57°
33°
23
62°
32°
24
68°
35°
25
70°
37°
26
70°
41°
27
72°
45°
28
64°
45°
29
64°
45°
30
68°
58°
1
70°
50°
2
61°
43°
3
54°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in L'Ascension-de-Notre-Seigneur
L'Ascension-de-Notre-Seigneur's September 2026 forecast shows daily high temperatures ranging from 54° to 70°, with overnight lows between 37° and 58°. The average high for September is 63° with an average low of 47°. 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 L'Ascension-de-Notre-Seigneur. See also: October | November | December.