S
M
T
W
T
F
S
28
66°
43°
29
65°
42°
30
65°
43°
1
64°
42°
2
65°
42°
3
67°
43°
4
66°
43°
5
66°
48°
6
70°
46°
7
71°
43°
8
66°
44°
9
67°
49°
10
71°
48°
11
69°
46°
12
72°
44°
13
73°
44°
14
73°
45°
15
74°
50°
16
74°
45°
17
69°
48°
18
70°
49°
19
68°
46°
20
69°
49°
21
72°
49°
22
66°
48°
23
70°
46°
24
72°
42°
25
65°
42°
26
66°
44°
27
65°
42°
28
63°
41°
29
64°
42°
30
68°
45°
31
69°
41°
1
68°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Richardson
Richardson's July 2026 forecast shows daily high temperatures ranging from 63° to 74°, with overnight lows between 41° and 50°. The average high for July is 68° with an average low of 45°. 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 Richardson. See also: August | September | October.
