S
M
T
W
T
F
S
27
93°
76°
28
93°
77°
29
95°
77°
30
90°
78°
1
80°
72°
2
76°
67°
3
74°
68°
4
79°
65°
5
84°
61°
6
82°
60°
7
85°
63°
8
84°
62°
9
80°
61°
10
77°
62°
11
79°
61°
12
78°
62°
13
80°
60°
14
77°
57°
15
72°
56°
16
75°
60°
17
77°
61°
18
78°
55°
19
71°
50°
20
75°
53°
21
72°
53°
22
77°
59°
23
78°
59°
24
77°
58°
25
75°
59°
26
70°
58°
27
71°
58°
28
70°
56°
29
68°
51°
30
68°
52°
31
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Richardson
Richardson's October 2026 forecast shows daily high temperatures ranging from 68° to 85°, with overnight lows between 50° and 72°. The average high for October is 76° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Richardson. See also: November | December | January.
