S
M
T
W
T
F
S
27
89°
76°
28
90°
80°
29
85°
72°
30
85°
77°
1
83°
74°
2
88°
81°
3
87°
80°
4
90°
79°
5
90°
80°
6
90°
79°
7
90°
77°
8
89°
79°
9
90°
79°
10
88°
81°
11
91°
78°
12
90°
74°
13
89°
75°
14
87°
76°
15
88°
75°
16
86°
74°
17
87°
74°
18
86°
76°
19
85°
75°
20
84°
76°
21
85°
72°
22
84°
75°
23
85°
74°
24
82°
73°
25
82°
74°
26
84°
74°
27
82°
73°
28
83°
73°
29
80°
72°
30
82°
74°
31
81°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Brownsville
Brownsville's October 2026 forecast shows daily high temperatures ranging from 80° to 91°, with overnight lows between 72° and 81°. The average high for October is 85° with an average low of 75°. 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 Brownsville. See also: November | December | January.