S
M
T
W
T
F
S
26
70°
44°
27
71°
50°
28
61°
46°
29
55°
41°
30
54°
39°
1
53°
34°
2
59°
31°
3
73°
45°
4
79°
42°
5
58°
40°
6
51°
32°
7
64°
31°
8
71°
41°
9
70°
46°
10
66°
37°
11
64°
38°
12
77°
44°
13
67°
45°
14
72°
40°
15
82°
54°
16
82°
60°
17
81°
64°
18
76°
62°
19
67°
46°
20
64°
44°
21
63°
49°
22
60°
52°
23
68°
55°
24
75°
58°
25
74°
56°
26
76°
58°
27
78°
59°
28
79°
59°
29
79°
58°
30
76°
58°
31
78°
60°
1
75°
54°
2
77°
58°
3
70°
55°
4
70°
53°
5
73°
60°
6
77°
61°
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 60° to 79°, with overnight lows between 44° and 61°. The average high for May is 73° with an average low of 55°. 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.
