S
M
T
W
T
F
S
30
65°
46°
31
64°
43°
1
63°
45°
2
62°
44°
3
62°
44°
4
63°
43°
5
62°
44°
6
63°
46°
7
62°
47°
8
65°
45°
9
62°
44°
10
61°
43°
11
62°
47°
12
63°
46°
13
64°
43°
14
60°
41°
15
59°
41°
16
59°
42°
17
63°
43°
18
64°
46°
19
65°
48°
20
65°
48°
21
64°
47°
22
64°
46°
23
63°
44°
24
62°
42°
25
59°
41°
26
56°
42°
27
56°
41°
28
59°
40°
29
55°
38°
30
54°
38°
1
Hist. Avg.
56°
43°
2
Hist. Avg.
56°
42°
3
Hist. Avg.
56°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Bernard's
St. Bernard's's September 2026 forecast shows daily high temperatures ranging from 54° to 65°, with overnight lows between 38° and 48°. The average high for September is 62° with an average low of 44°. 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 St. Bernard's. See also: October | November | December.
