S
M
T
W
T
F
S
26
62°
42°
27
65°
49°
28
64°
52°
29
55°
39°
30
58°
35°
1
48°
32°
2
54°
29°
3
63°
39°
4
79°
47°
5
57°
44°
6
57°
41°
7
58°
35°
8
64°
43°
9
74°
44°
10
62°
42°
11
61°
38°
12
77°
36°
13
61°
40°
14
64°
41°
15
72°
45°
16
83°
59°
17
85°
63°
18
82°
65°
19
82°
50°
20
58°
45°
21
65°
47°
22
65°
57°
23
68°
58°
24
74°
54°
25
75°
57°
26
75°
59°
27
77°
58°
28
78°
60°
29
79°
59°
30
80°
61°
31
79°
59°
1
84°
64°
2
80°
59°
3
73°
56°
4
73°
54°
5
74°
59°
6
80°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Valparaiso
Valparaiso's May 2026 forecast shows daily high temperatures ranging from 58° to 84°, with overnight lows between 45° and 64°. The average high for May 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 May weather will actually feel in Valparaiso. See also: June | July | August.
