S
M
T
W
T
F
S
30
91°
72°
31
95°
75°
1
97°
70°
2
97°
68°
3
95°
72°
4
95°
72°
5
97°
70°
6
86°
72°
7
79°
68°
8
97°
66°
9
82°
68°
10
82°
57°
11
84°
55°
12
81°
61°
13
72°
55°
14
81°
55°
15
84°
63°
16
72°
63°
17
86°
70°
18
84°
68°
19
90°
68°
20
72°
61°
21
64°
61°
22
61°
55°
23
70°
52°
24
66°
52°
25
68°
61°
26
73°
59°
27
66°
57°
28
79°
57°
29
84°
55°
30
73°
66°
1
72°
55°
2
70°
46°
3
73°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lucerne
Lucerne's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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. See also: October | November | December.
