S
M
T
W
T
F
S
27
43°
25°
28
42°
24°
29
40°
22°
30
39°
21°
1
37°
20°
2
36°
25°
3
36°
24°
4
38°
24°
5
40°
25°
6
40°
25°
7
39°
24°
8
41°
25°
9
41°
27°
10
39°
9°
11
40°
26°
12
39°
19°
13
38°
13°
14
34°
11°
15
27°
9°
16
26°
7°
17
23°
8°
18
22°
9°
19
24°
8°
20
29°
6°
21
23°
4°
22
22°
14°
23
23°
18°
24
32°
17°
25
Hist. Avg.
23°
10°
26
Hist. Avg.
23°
10°
27
Hist. Avg.
22°
9°
28
Hist. Avg.
21°
8°
29
Hist. Avg.
20°
8°
30
Hist. Avg.
20°
7°
31
Hist. Avg.
19°
6°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Richardson
Richardson's October 2026 forecast shows daily high temperatures ranging from 22° to 43°, with overnight lows between 4° and 27°. The average high for October is 34° with an average low of 17°. 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.
