S
M
T
W
T
F
S
27
83°
68°
28
84°
69°
29
85°
67°
30
84°
68°
1
83°
67°
2
81°
64°
3
82°
65°
4
81°
64°
5
81°
62°
6
82°
61°
7
84°
63°
8
84°
64°
9
83°
64°
10
84°
65°
11
84°
58°
12
83°
57°
13
77°
57°
14
76°
62°
15
78°
63°
16
82°
63°
17
81°
62°
18
82°
61°
19
82°
56°
20
81°
55°
21
75°
54°
22
74°
58°
23
76°
59°
24
80°
59°
25
74°
59°
26
72°
51°
27
72°
51°
28
Hist. Avg.
75°
54°
29
Hist. Avg.
75°
54°
30
Hist. Avg.
75°
54°
31
Hist. Avg.
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Slidell
Slidell's October 2026 forecast shows daily high temperatures ranging from 72° to 85°, with overnight lows between 51° and 69°. The average high for October is 80° with an average low of 61°. 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 Slidell. See also: November | December | January.