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
32°
26°
18
32°
23°
19
36°
27°
20
32°
25°
21
26°
20°
22
25°
9°
23
25°
17°
24
32°
21°
25
31°
20°
26
32°
20°
27
32°
21°
28
32°
24°
29
33°
20°
30
22°
6°
31
13°
-5°
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 13° to 36°, with overnight lows between -5° and 27°. The average high for October is 29° with an average low of 18°. 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.
