S
M
T
W
T
F
S
27
78°
54°
28
77°
55°
29
79°
57°
30
83°
55°
1
87°
55°
2
90°
56°
3
70°
55°
4
66°
55°
5
75°
52°
6
70°
46°
7
77°
42°
8
85°
52°
9
77°
52°
10
64°
56°
11
66°
61°
12
80°
52°
13
85°
61°
14
90°
64°
15
78°
63°
16
82°
43°
17
61°
31°
18
62°
34°
19
69°
40°
20
72°
42°
21
66°
44°
22
67°
41°
23
67°
38°
24
66°
39°
25
59°
34°
26
64°
39°
27
68°
39°
28
62°
32°
29
57°
32°
30
57°
33°
31
64°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Gretna
Gretna's October 2026 forecast shows daily high temperatures ranging from 57° to 90°, with overnight lows between 31° and 64°. The average high for October is 69° with an average low of 43°. 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 Gretna. See also: November | December | January.
