S
M
T
W
T
F
S
28
93°
78°
29
94°
78°
30
92°
74°
1
94°
74°
2
94°
73°
3
94°
74°
4
94°
75°
5
93°
75°
6
94°
76°
7
96°
76°
8
96°
77°
9
94°
76°
10
88°
77°
11
89°
76°
12
89°
75°
13
91°
74°
14
92°
72°
15
95°
73°
16
95°
75°
17
96°
74°
18
94°
73°
19
95°
74°
20
96°
75°
21
96°
75°
22
95°
74°
23
96°
75°
24
96°
75°
25
95°
76°
26
97°
75°
27
96°
75°
28
93°
74°
29
95°
74°
30
92°
73°
31
93°
73°
1
92°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lewisville
Lewisville's July 2026 forecast shows daily high temperatures ranging from 88° to 97°, with overnight lows between 72° and 77°. The average high for July is 94° 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 July weather will actually feel in Lewisville. See also: August | September | October.
