S
M
T
W
T
F
S
1
87°
62°
2
82°
61°
3
77°
66°
4
77°
70°
5
83°
70°
6
87°
69°
7
83°
68°
8
86°
63°
9
85°
60°
10
77°
61°
11
74°
60°
12
74°
59°
13
75°
59°
14
73°
61°
15
73°
61°
16
74°
64°
17
74°
65°
18
77°
64°
19
76°
65°
20
80°
64°
21
79°
63°
22
76°
61°
23
72°
55°
24
72°
52°
25
70°
54°
26
68°
55°
27
71°
57°
28
70°
63°
29
75°
62°
30
78°
59°
1
78°
57°
2
75°
59°
3
70°
54°
4
77°
51°
5
72°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
November Weather in Port Isabel
Port Isabel's November 2026 forecast shows daily high temperatures ranging from 68° to 87°, with overnight lows between 51° and 70°. The average high for November is 76° 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 November weather will actually feel in Port Isabel. See also: December | January | February.