S
M
T
W
T
F
S
27
55°
40°
28
46°
38°
29
39°
32°
30
35°
30°
1
30°
27°
2
30°
24°
3
35°
18°
4
40°
33°
5
47°
31°
6
38°
26°
7
32°
29°
8
33°
18°
9
35°
15°
10
49°
34°
11
48°
33°
12
42°
27°
13
41°
24°
14
39°
26°
15
39°
34°
16
40°
30°
17
34°
27°
18
30°
18°
19
37°
17°
20
32°
22°
21
24°
13°
22
18°
14°
23
23°
-2°
24
30°
25°
25
33°
23°
26
33°
28°
27
35°
22°
28
34°
25°
29
34°
26°
30
36°
24°
31
31°
19°
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 30° to 36°, with overnight lows between 19° and 28°. The average high for October is 33° with an average low of 24°. 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.
