S
M
T
W
T
F
S
27
92°
63°
28
93°
62°
29
95°
65°
30
92°
74°
1
92°
72°
2
82°
71°
3
73°
67°
4
80°
66°
5
87°
59°
6
87°
56°
7
91°
58°
8
91°
60°
9
95°
57°
10
89°
58°
11
93°
63°
12
96°
70°
13
93°
70°
14
94°
69°
15
91°
62°
16
81°
54°
17
79°
50°
18
73°
53°
19
77°
54°
20
80°
56°
21
76°
50°
22
72°
50°
23
69°
48°
24
69°
46°
25
71°
46°
26
74°
48°
27
77°
52°
28
75°
51°
29
71°
48°
30
72°
52°
31
75°
53°
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 69° to 96°, with overnight lows between 46° and 70°. The average high for October is 81° with an average low of 55°. 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.