S
M
T
W
T
F
S
26
88°
68°
27
86°
66°
28
88°
68°
29
88°
68°
30
90°
73°
31
91°
70°
1
93°
72°
2
93°
73°
3
93°
73°
4
91°
75°
5
93°
73°
6
95°
73°
7
97°
75°
8
97°
77°
9
95°
79°
10
93°
77°
11
90°
72°
12
86°
68°
13
81°
61°
14
79°
61°
15
81°
61°
16
86°
64°
17
84°
68°
18
88°
70°
19
90°
70°
20
91°
73°
21
90°
70°
22
86°
70°
23
89°
59°
24
88°
73°
25
90°
72°
26
90°
70°
27
90°
63°
28
77°
70°
29
82°
66°
30
85°
62°
31
81°
54°
1
65°
49°
2
66°
50°
3
63°
55°
4
64°
52°
5
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Challenge-Brownsville
Challenge-Brownsville's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Challenge-Brownsville. See also: September | October | November.
