S
M
T
W
T
F
S
30
92°
58°
31
85°
60°
1
68°
52°
2
69°
55°
3
64°
56°
4
73°
51°
5
77°
52°
6
76°
54°
7
85°
53°
8
91°
57°
9
91°
61°
10
94°
69°
11
89°
64°
12
81°
65°
13
76°
53°
14
85°
53°
15
87°
57°
16
75°
58°
17
76°
51°
18
86°
55°
19
92°
58°
20
83°
59°
21
88°
59°
22
85°
58°
23
90°
57°
24
86°
59°
25
75°
60°
26
74°
53°
27
76°
57°
28
83°
53°
29
91°
56°
30
95°
59°
1
93°
60°
2
90°
59°
3
97°
60°
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.
