S
M
T
W
T
F
S
30
96°
69°
31
92°
64°
1
89°
61°
2
89°
59°
3
88°
57°
4
90°
56°
5
92°
67°
6
87°
66°
7
92°
63°
8
97°
65°
9
97°
67°
10
92°
65°
11
88°
61°
12
88°
62°
13
89°
61°
14
92°
62°
15
91°
65°
16
93°
61°
17
96°
64°
18
88°
57°
19
89°
60°
20
91°
63°
21
92°
63°
22
91°
62°
23
90°
64°
24
88°
60°
25
89°
63°
26
92°
64°
27
91°
64°
28
89°
63°
29
91°
62°
30
90°
63°
1
91°
62°
2
90°
62°
3
89°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake Elsinore
Lake Elsinore's September 2026 forecast shows daily high temperatures ranging from 87° to 97°, with overnight lows between 56° and 67°. The average high for September is 91° with an average low of 62°. 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 Lake Elsinore. See also: October | November | December.
