S
M
T
W
T
F
S
31
57°
37°
1
60°
38°
2
64°
40°
3
64°
42°
4
63°
40°
5
64°
40°
6
66°
41°
7
63°
40°
8
59°
40°
9
61°
39°
10
68°
40°
11
68°
44°
12
69°
44°
13
70°
45°
14
71°
45°
15
70°
44°
16
70°
45°
17
69°
40°
18
64°
40°
19
66°
41°
20
61°
41°
21
60°
40°
22
61°
40°
23
62°
40°
24
62°
40°
25
63°
41°
26
66°
42°
27
63°
42°
28
64°
43°
29
64°
42°
30
63°
41°
1
63°
41°
2
64°
42°
3
64°
42°
4
63°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Richardson
Richardson's June 2026 forecast shows daily high temperatures ranging from 57° to 71°, with overnight lows between 37° and 45°. The average high for June is 64° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Richardson. See also: July | August | September.