S
M
T
W
T
F
S
28
96°
78°
29
96°
78°
30
95°
75°
1
96°
76°
2
95°
75°
3
96°
74°
4
97°
75°
5
98°
77°
6
96°
75°
7
97°
74°
8
97°
74°
9
90°
73°
10
91°
73°
11
97°
75°
12
97°
78°
13
96°
77°
14
96°
78°
15
94°
76°
16
93°
77°
17
94°
76°
18
96°
75°
19
97°
76°
20
95°
77°
21
97°
76°
22
99°
78°
23
98°
76°
24
99°
77°
25
97°
78°
26
102°
76°
27
98°
78°
28
97°
78°
29
98°
77°
30
99°
78°
31
98°
78°
1
99°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Harlingen
Harlingen's July 2026 forecast shows daily high temperatures ranging from 93° to 102°, with overnight lows between 75° and 78°. The average high for July is 97° with an average low of 77°. 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 Harlingen. See also: August | September | October.
