S
M
T
W
T
F
S
26
70°
39°
27
68°
43°
28
72°
48°
29
66°
46°
30
63°
43°
1
73°
41°
2
77°
46°
3
72°
54°
4
64°
48°
5
59°
54°
6
N/A
7
62°
42°
8
70°
48°
9
74°
52°
10
73°
54°
11
65°
43°
12
59°
42°
13
60°
44°
14
61°
45°
15
59°
47°
16
63°
48°
17
65°
48°
18
66°
49°
19
64°
46°
20
64°
45°
21
68°
50°
22
72°
48°
23
64°
46°
24
67°
54°
25
72°
55°
26
74°
55°
27
74°
56°
28
73°
56°
29
71°
55°
30
68°
56°
31
73°
56°
1
74°
55°
2
75°
57°
3
74°
56°
4
75°
57°
5
75°
57°
6
74°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Saarlouis
Saarlouis's May 2026 forecast shows daily high temperatures ranging from 59° to 75°, with overnight lows between 42° and 57°. The average high for May is 69° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Saarlouis. See also: June | July | August.
