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
47°
31°
11
39°
30°
12
40°
24°
13
40°
27°
14
36°
26°
15
36°
23°
16
34°
21°
17
31°
18°
18
30°
19°
19
32°
18°
20
32°
22°
21
34°
21°
22
34°
22°
23
26°
10°
24
32°
19°
25
33°
18°
26
32°
17°
27
31°
17°
28
30°
16°
29
30°
16°
30
29°
15°
31
29°
15°
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 26° to 47°, with overnight lows between 10° and 31°. The average high for October is 34° with an average low of 20°. 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.
