S
M
T
W
T
F
S
27
86°
72°
28
86°
72°
29
87°
71°
30
88°
72°
1
88°
72°
2
87°
66°
3
86°
65°
4
81°
66°
5
82°
67°
6
85°
69°
7
85°
68°
8
84°
70°
9
86°
70°
10
86°
69°
11
85°
65°
12
82°
61°
13
79°
62°
14
79°
62°
15
80°
63°
16
80°
65°
17
79°
67°
18
78°
67°
19
81°
66°
20
83°
65°
21
83°
65°
22
82°
64°
23
83°
65°
24
83°
65°
25
82°
64°
26
81°
57°
27
80°
62°
28
74°
61°
29
78°
62°
30
79°
55°
31
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Chalmette
Chalmette's October 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 53° and 72°. The average high for October is 82° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Chalmette. See also: November | December | January.