S
M
T
W
T
F
S
26
97°
77°
27
96°
79°
28
96°
80°
29
97°
82°
30
97°
81°
31
97°
80°
1
99°
79°
2
100°
70°
3
97°
73°
4
96°
81°
5
97°
82°
6
97°
80°
7
96°
80°
8
98°
76°
9
96°
78°
10
98°
78°
11
97°
80°
12
97°
80°
13
98°
81°
14
96°
82°
15
97°
82°
16
97°
79°
17
98°
77°
18
98°
77°
19
98°
77°
20
98°
81°
21
98°
81°
22
101°
77°
23
99°
75°
24
100°
76°
25
100°
79°
26
99°
79°
27
100°
77°
28
99°
78°
29
99°
78°
30
100°
78°
31
100°
80°
1
103°
79°
2
104°
81°
3
101°
81°
4
101°
79°
5
100°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Weslaco
Weslaco's August 2026 forecast shows daily high temperatures ranging from 100° to 104°, with overnight lows between 78° and 81°. The average high for August is 102° with an average low of 80°. 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 Weslaco. See also: September | October | November.
