S
M
T
W
T
F
S
27
84°
74°
28
85°
74°
29
87°
73°
30
88°
74°
1
87°
74°
2
87°
73°
3
84°
74°
4
87°
73°
5
86°
73°
6
86°
72°
7
87°
70°
8
81°
65°
9
80°
63°
10
81°
64°
11
80°
63°
12
82°
66°
13
86°
69°
14
86°
69°
15
85°
70°
16
86°
70°
17
86°
69°
18
85°
70°
19
84°
70°
20
85°
69°
21
85°
68°
22
80°
64°
23
77°
66°
24
80°
67°
25
83°
68°
26
75°
56°
27
75°
60°
28
77°
64°
29
81°
65°
30
83°
66°
31
84°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Port Lavaca
Port Lavaca's October 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 56° and 74°. The average high for October is 83° with an average low of 68°. 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 Port Lavaca. See also: November | December | January.
