S
M
T
W
T
F
S
26
60°
39°
27
61°
40°
28
56°
38°
29
58°
39°
30
61°
41°
1
65°
44°
2
56°
39°
3
56°
41°
4
58°
42°
5
53°
40°
6
56°
40°
7
53°
41°
8
55°
42°
9
54°
40°
10
55°
42°
11
59°
49°
12
57°
49°
13
57°
46°
14
58°
42°
15
57°
45°
16
59°
42°
17
61°
44°
18
63°
50°
19
65°
50°
20
61°
47°
21
59°
45°
22
58°
46°
23
60°
51°
24
60°
50°
25
61°
51°
26
62°
49°
27
66°
52°
28
67°
53°
29
67°
52°
30
66°
50°
31
61°
48°
1
64°
49°
2
61°
46°
3
61°
46°
4
62°
47°
5
67°
52°
6
63°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Spa
Spa's May 2026 forecast shows daily high temperatures ranging from 53° to 67°, with overnight lows between 38° and 53°. The average high for May is 60° with an average low of 45°. 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 Spa. See also: June | July | August.
