S
M
T
W
T
F
S
28
59°
52°
29
60°
50°
30
58°
46°
1
67°
48°
2
67°
44°
3
67°
48°
4
69°
48°
5
70°
46°
6
74°
47°
7
75°
51°
8
65°
50°
9
54°
50°
10
67°
54°
11
79°
52°
12
74°
54°
13
67°
54°
14
63°
56°
15
65°
50°
16
66°
48°
17
67°
51°
18
66°
47°
19
70°
49°
20
81°
58°
21
71°
54°
22
67°
54°
23
N/A
24
58°
40°
25
67°
49°
26
65°
45°
27
57°
45°
28
61°
44°
29
64°
44°
30
66°
44°
31
68°
45°
1
73°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Richardson
Richardson's July 2026 forecast shows daily high temperatures ranging from 57° to 73°, with overnight lows between 40° and 49°. The average high for July is 64° 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.