S
M
T
W
T
F
S
27
78°
51°
28
77°
53°
29
78°
55°
30
82°
58°
1
84°
56°
2
87°
57°
3
73°
56°
4
68°
56°
5
74°
54°
6
70°
50°
7
76°
46°
8
85°
53°
9
75°
57°
10
61°
58°
11
73°
58°
12
80°
54°
13
84°
55°
14
80°
54°
15
71°
52°
16
77°
53°
17
75°
47°
18
65°
42°
19
66°
44°
20
67°
43°
21
65°
41°
22
67°
42°
23
63°
39°
24
62°
36°
25
62°
38°
26
65°
40°
27
69°
41°
28
66°
35°
29
59°
34°
30
60°
34°
31
65°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Lewisville
Lewisville's October 2026 forecast shows daily high temperatures ranging from 59° to 84°, with overnight lows between 34° and 58°. The average high for October is 69° with an average low of 45°. 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 Lewisville. See also: November | December | January.