S
M
T
W
T
F
S
30
71°
56°
31
77°
57°
1
77°
56°
2
78°
51°
3
76°
47°
4
74°
53°
5
77°
45°
6
75°
45°
7
68°
52°
8
67°
52°
9
70°
49°
10
67°
44°
11
66°
51°
12
73°
43°
13
69°
47°
14
71°
50°
15
73°
52°
16
66°
42°
17
68°
42°
18
64°
44°
19
Hist. Avg.
65°
45°
20
Hist. Avg.
65°
44°
21
Hist. Avg.
65°
44°
22
Hist. Avg.
64°
44°
23
Hist. Avg.
64°
43°
24
Hist. Avg.
63°
43°
25
Hist. Avg.
63°
43°
26
Hist. Avg.
63°
42°
27
Hist. Avg.
62°
42°
28
Hist. Avg.
62°
42°
29
Hist. Avg.
62°
41°
30
Hist. Avg.
61°
41°
1
Hist. Avg.
61°
41°
2
Hist. Avg.
60°
40°
3
Hist. Avg.
60°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Plaisance
Plaisance's September 2026 forecast shows daily high temperatures ranging from 64° to 78°, with overnight lows between 42° and 57°. The average high for September is 71° with an average low of 49°. 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 Plaisance. See also: October | November | December.
