S
M
T
W
T
F
S
28
84°
63°
29
78°
60°
30
78°
59°
1
79°
62°
2
84°
65°
3
79°
62°
4
80°
67°
5
83°
68°
6
86°
69°
7
88°
70°
8
88°
69°
9
87°
70°
10
89°
70°
11
89°
68°
12
87°
69°
13
88°
68°
14
86°
67°
15
88°
69°
16
88°
66°
17
82°
64°
18
79°
63°
19
80°
62°
20
80°
61°
21
81°
61°
22
81°
64°
23
82°
68°
24
85°
69°
25
86°
68°
26
84°
69°
27
82°
62°
28
84°
65°
29
86°
67°
30
88°
62°
31
83°
62°
1
84°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lucerne
Lucerne's July 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 59° and 70°. The average high for July is 84° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Lucerne. See also: August | September | October.