S
M
T
W
T
F
S
30
94°
66°
31
89°
61°
1
86°
60°
2
85°
62°
3
84°
59°
4
83°
59°
5
89°
63°
6
75°
65°
7
80°
62°
8
83°
62°
9
88°
65°
10
89°
64°
11
87°
62°
12
88°
61°
13
89°
63°
14
88°
64°
15
91°
59°
16
94°
64°
17
94°
63°
18
85°
58°
19
87°
60°
20
90°
61°
21
92°
62°
22
91°
62°
23
89°
61°
24
87°
59°
25
89°
61°
26
90°
61°
27
90°
60°
28
87°
60°
29
89°
59°
30
88°
59°
1
89°
60°
2
88°
59°
3
87°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Leona Valley
Leona Valley's September 2026 forecast shows daily high temperatures ranging from 75° to 94°, with overnight lows between 58° and 65°. The average high for September is 88° with an average low of 61°. 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 Leona Valley. See also: October | November | December.
