S
M
T
W
T
F
S
26
77°
60°
27
79°
56°
28
76°
53°
29
74°
57°
30
73°
54°
31
72°
53°
1
71°
58°
2
72°
57°
3
71°
60°
4
71°
53°
5
72°
51°
6
71°
53°
7
74°
60°
8
78°
62°
9
79°
60°
10
78°
59°
11
77°
52°
12
74°
54°
13
73°
59°
14
77°
60°
15
76°
59°
16
77°
59°
17
75°
54°
18
70°
53°
19
76°
61°
20
78°
61°
21
Hist. Avg.
70°
53°
22
Hist. Avg.
70°
53°
23
Hist. Avg.
70°
53°
24
Hist. Avg.
70°
53°
25
Hist. Avg.
70°
53°
26
Hist. Avg.
69°
53°
27
Hist. Avg.
69°
53°
28
Hist. Avg.
69°
52°
29
Hist. Avg.
69°
52°
30
Hist. Avg.
69°
52°
31
Hist. Avg.
68°
52°
1
Hist. Avg.
68°
52°
2
Hist. Avg.
68°
52°
3
Hist. Avg.
68°
52°
4
Hist. Avg.
68°
51°
5
Hist. Avg.
68°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Luxembourg
Luxembourg's August 2026 forecast shows daily high temperatures ranging from 70° to 79°, with overnight lows between 51° and 62°. The average high for August is 75° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Luxembourg. See also: September | October | November.