S
M
T
W
T
F
S
28
90°
66°
29
82°
61°
30
84°
58°
1
77°
58°
2
79°
58°
3
79°
55°
4
76°
54°
5
75°
53°
6
74°
52°
7
73°
54°
8
74°
55°
9
77°
54°
10
76°
59°
11
74°
57°
12
77°
58°
13
78°
60°
14
79°
59°
15
76°
58°
16
75°
56°
17
76°
60°
18
77°
59°
19
74°
56°
20
75°
59°
21
76°
59°
22
78°
60°
23
79°
60°
24
78°
61°
25
79°
61°
26
80°
62°
27
81°
62°
28
80°
61°
29
80°
61°
30
79°
62°
31
81°
63°
1
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Luxembourg
Luxembourg's July 2026 forecast shows daily high temperatures ranging from 73° to 90°, with overnight lows between 52° and 66°. The average high for July is 78° with an average low of 59°. 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 Luxembourg. See also: August | September | October.