S
M
T
W
T
F
S
26
69°
45°
27
68°
48°
28
60°
47°
29
53°
42°
30
53°
35°
1
50°
33°
2
51°
30°
3
64°
37°
4
77°
44°
5
59°
45°
6
56°
37°
7
57°
35°
8
65°
35°
9
70°
46°
10
61°
36°
11
62°
38°
12
63°
32°
13
62°
38°
14
67°
38°
15
69°
39°
16
82°
55°
17
85°
58°
18
84°
66°
19
82°
58°
20
66°
49°
21
67°
46°
22
73°
47°
23
60°
54°
24
68°
52°
25
80°
51°
26
83°
56°
27
84°
55°
28
75°
49°
29
75°
48°
30
70°
47°
31
74°
51°
1
75°
50°
2
74°
54°
3
75°
56°
4
75°
57°
5
79°
58°
6
78°
57°
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 70° to 84°, with overnight lows between 47° and 58°. The average high for May is 77° with an average low of 53°. 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.
