S
M
T
W
T
F
S
30
75°
44°
31
69°
41°
1
65°
41°
2
64°
43°
3
64°
40°
4
63°
42°
5
64°
40°
6
64°
39°
7
67°
42°
8
72°
45°
9
71°
45°
10
68°
47°
11
62°
47°
12
64°
45°
13
70°
40°
14
68°
39°
15
67°
40°
16
60°
43°
17
59°
38°
18
64°
45°
19
67°
45°
20
Hist. Avg.
66°
46°
21
Hist. Avg.
65°
46°
22
Hist. Avg.
65°
45°
23
Hist. Avg.
65°
45°
24
Hist. Avg.
64°
45°
25
Hist. Avg.
64°
44°
26
Hist. Avg.
63°
44°
27
Hist. Avg.
63°
44°
28
Hist. Avg.
63°
43°
29
Hist. Avg.
62°
43°
30
Hist. Avg.
62°
43°
1
Hist. Avg.
61°
42°
2
Hist. Avg.
61°
42°
3
Hist. Avg.
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Saint-Nicolas
Saint-Nicolas's September 2026 forecast shows daily high temperatures ranging from 59° to 75°, with overnight lows between 38° and 47°. The average high for September is 66° with an average low of 42°. 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 Saint-Nicolas. See also: October | November | December.
