S
M
T
W
T
F
S
26
49°
40°
27
64°
38°
28
58°
46°
29
55°
47°
30
47°
35°
1
53°
34°
2
44°
32°
3
54°
43°
4
68°
56°
5
73°
54°
6
57°
40°
7
51°
37°
8
51°
38°
9
51°
35°
10
59°
38°
11
57°
41°
12
60°
40°
13
60°
44°
14
61°
46°
15
60°
43°
16
61°
44°
17
71°
49°
18
71°
49°
19
68°
47°
20
72°
49°
21
70°
47°
22
68°
41°
23
61°
41°
24
62°
42°
25
62°
43°
26
63°
42°
27
63°
42°
28
64°
43°
29
64°
42°
30
65°
44°
31
70°
52°
1
66°
50°
2
67°
46°
3
67°
48°
4
70°
51°
5
71°
49°
6
75°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Portage
Portage's May 2026 forecast shows daily high temperatures ranging from 51° to 75°, with overnight lows between 35° and 56°. The average high for May is 64° 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 Portage. See also: June | July | August.
