S
M
T
W
T
F
S
30
82°
56°
31
79°
63°
1
78°
54°
2
81°
54°
3
82°
55°
4
88°
55°
5
92°
58°
6
93°
59°
7
90°
57°
8
92°
58°
9
81°
49°
10
80°
49°
11
83°
53°
12
91°
49°
13
86°
50°
14
87°
51°
15
90°
52°
16
87°
55°
17
88°
52°
18
73°
53°
19
65°
45°
20
66°
46°
21
67°
45°
22
71°
47°
23
71°
48°
24
70°
47°
25
71°
48°
26
70°
49°
27
70°
48°
28
69°
50°
29
70°
49°
30
69°
45°
1
66°
43°
2
68°
47°
3
67°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Saint Marcel
Saint Marcel's September 2026 forecast shows daily high temperatures ranging from 65° to 93°, with overnight lows between 43° and 59°. The average high for September is 77° with an average low of 50°. 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 Marcel. See also: October | November | December.
