S
M
T
W
T
F
S
27
36°
20°
28
45°
29°
29
43°
28°
30
37°
26°
1
36°
23°
2
35°
17°
3
34°
16°
4
34°
16°
5
36°
17°
6
37°
22°
7
42°
26°
8
43°
23°
9
35°
20°
10
30°
12°
11
29°
13°
12
34°
24°
13
38°
22°
14
35°
21°
15
37°
18°
16
37°
22°
17
36°
21°
18
32°
18°
19
32°
14°
20
30°
11°
21
24°
10°
22
21°
4°
23
19°
3°
24
17°
2°
25
18°
2°
26
27°
14°
27
27°
13°
28
26°
13°
29
27°
11°
30
26°
9°
31
24°
8°
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 17° to 45°, with overnight lows between 2° and 29°. The average high for October is 32° with an average low of 16°. 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.
