S
M
T
W
T
F
S
28
101°
78°
29
101°
79°
30
99°
79°
1
100°
76°
2
100°
77°
3
102°
78°
4
102°
78°
5
101°
78°
6
100°
79°
7
100°
78°
8
103°
79°
9
102°
78°
10
104°
79°
11
101°
78°
12
103°
78°
13
99°
79°
14
101°
80°
15
102°
77°
16
103°
78°
17
102°
78°
18
102°
79°
19
101°
79°
20
102°
78°
21
102°
79°
22
101°
79°
23
103°
78°
24
103°
79°
25
102°
79°
26
103°
78°
27
103°
80°
28
102°
80°
29
103°
79°
30
104°
80°
31
104°
80°
1
105°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Los Fresnos
Los Fresnos's July 2026 forecast shows daily high temperatures ranging from 99° to 105°, with overnight lows between 77° and 80°. The average high for July is 102° with an average low of 79°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Los Fresnos. See also: August | September | October.