S
M
T
W
T
F
S
27
56°
34°
28
50°
36°
29
44°
33°
30
42°
30°
1
41°
25°
2
39°
26°
3
42°
25°
4
36°
23°
5
40°
27°
6
39°
27°
7
39°
26°
8
40°
26°
9
34°
18°
10
32°
21°
11
30°
22°
12
26°
9°
13
26°
10°
14
28°
15°
15
34°
22°
16
38°
23°
17
37°
21°
18
37°
21°
19
35°
20°
20
32°
14°
21
26°
6°
22
20°
2°
23
18°
2°
24
18°
10°
25
30°
18°
26
32°
17°
27
31°
13°
28
30°
12°
29
27°
15°
30
29°
15°
31
29°
14°
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 18° to 56°, with overnight lows between 2° and 36°. The average high for October is 34° with an average low of 19°. 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.
