S
M
T
W
T
F
S
30
96°
58°
31
93°
60°
1
95°
60°
2
97°
61°
3
96°
58°
4
93°
56°
5
91°
56°
6
89°
55°
7
89°
53°
8
88°
54°
9
87°
54°
10
89°
55°
11
89°
57°
12
91°
56°
13
93°
56°
14
91°
54°
15
89°
53°
16
87°
55°
17
87°
57°
18
90°
58°
19
89°
57°
20
92°
57°
21
92°
56°
22
88°
55°
23
86°
51°
24
85°
50°
25
84°
49°
26
83°
50°
27
82°
51°
28
85°
50°
29
84°
50°
30
89°
52°
1
89°
52°
2
Hist. Avg.
86°
56°
3
Hist. Avg.
85°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lucerne Valley
Lucerne Valley's September 2026 forecast shows daily high temperatures ranging from 82° to 97°, with overnight lows between 49° and 61°. The average high for September is 89° 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 September weather will actually feel in Lucerne Valley. See also: October | November | December.
