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