S
M
T
W
T
F
S
28
98°
80°
29
99°
82°
30
95°
79°
1
97°
80°
2
96°
79°
3
98°
79°
4
98°
78°
5
92°
76°
6
97°
78°
7
94°
76°
8
97°
79°
9
97°
78°
10
98°
77°
11
97°
78°
12
99°
77°
13
98°
80°
14
99°
80°
15
94°
75°
16
98°
79°
17
98°
80°
18
98°
80°
19
97°
79°
20
98°
80°
21
99°
80°
22
99°
81°
23
100°
80°
24
100°
81°
25
99°
80°
26
99°
80°
27
98°
79°
28
99°
81°
29
99°
80°
30
100°
81°
31
101°
81°
1
100°
80°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Plano
Plano's July 2026 forecast shows daily high temperatures ranging from 92° to 101°, with overnight lows between 75° and 81°. The average high for July is 98° 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 Plano. See also: August | September | October.