S
M
T
W
T
F
S
30
68°
49°
31
67°
48°
1
66°
47°
2
67°
47°
3
67°
48°
4
68°
48°
5
67°
49°
6
66°
46°
7
64°
46°
8
63°
47°
9
64°
43°
10
65°
50°
11
66°
47°
12
64°
45°
13
64°
43°
14
65°
44°
15
68°
43°
16
67°
42°
17
69°
44°
18
69°
43°
19
68°
51°
20
67°
50°
21
64°
49°
22
67°
48°
23
66°
45°
24
60°
43°
25
57°
45°
26
64°
41°
27
60°
39°
28
55°
38°
29
55°
37°
30
61°
45°
1
57°
38°
2
54°
38°
3
Hist. Avg.
57°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Saint Agatha
Saint Agatha's September 2026 forecast shows daily high temperatures ranging from 54° to 69°, with overnight lows between 37° and 51°. The average high for September is 64° with an average low of 45°. 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 Agatha. See also: October | November | December.
