S
M
T
W
T
F
S
27
93°
72°
28
82°
64°
29
80°
63°
30
93°
71°
1
93°
65°
2
94°
69°
3
96°
70°
4
96°
70°
5
94°
70°
6
94°
70°
7
97°
72°
8
98°
73°
9
95°
72°
10
90°
63°
11
72°
58°
12
74°
56°
13
69°
56°
14
75°
60°
15
82°
62°
16
82°
62°
17
84°
62°
18
85°
63°
19
85°
63°
20
84°
62°
21
84°
63°
22
85°
62°
23
69°
44°
24
76°
54°
25
77°
54°
26
78°
55°
27
77°
54°
28
78°
54°
29
78°
53°
30
79°
57°
31
78°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Summerlin South
Summerlin South's October 2026 forecast shows daily high temperatures ranging from 69° to 90°, with overnight lows between 44° and 63°. The average high for October is 79° with an average low of 58°. 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 Summerlin South. See also: November | December | January.