S
M
T
W
T
F
S
30
87°
75°
31
87°
74°
1
88°
75°
2
87°
74°
3
87°
75°
4
88°
75°
5
87°
74°
6
88°
73°
7
89°
73°
8
90°
74°
9
90°
73°
10
89°
73°
11
90°
74°
12
90°
74°
13
91°
73°
14
91°
73°
15
90°
72°
16
90°
73°
17
91°
74°
18
91°
74°
19
90°
73°
20
89°
75°
21
90°
74°
22
89°
73°
23
90°
74°
24
90°
74°
25
89°
73°
26
90°
74°
27
90°
75°
28
89°
74°
29
90°
75°
30
90°
75°
1
91°
74°
2
90°
75°
3
90°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lomas
Lomas's September 2026 forecast shows daily high temperatures ranging from 87° to 91°, with overnight lows between 72° and 75°. The average high for September is 89° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Lomas. See also: October | November | December.