S
M
T
W
T
F
S
27
36°
20°
28
36°
18°
29
35°
17°
30
35°
17°
1
34°
18°
2
34°
21°
3
35°
17°
4
38°
16°
5
41°
20°
6
38°
21°
7
38°
21°
8
37°
22°
9
34°
14°
10
35°
13°
11
35°
19°
12
34°
20°
13
30°
12°
14
30°
13°
15
34°
18°
16
33°
22°
17
36°
17°
18
36°
8°
19
32°
13°
20
26°
19°
21
27°
5°
22
26°
7°
23
20°
10°
24
19°
8°
25
25°
2°
26
20°
1°
27
17°
0°
28
18°
11°
29
23°
0°
30
26°
3°
31
14°
-2°
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 14° to 41°, with overnight lows between -2° and 22°. The average high for October is 30° with an average low of 13°. 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.
