S
M
T
W
T
F
S
26
45°
32°
27
52°
31°
28
55°
30°
29
58°
28°
30
62°
30°
1
66°
32°
2
70°
32°
3
73°
40°
4
71°
47°
5
64°
40°
6
63°
43°
7
70°
44°
8
76°
50°
9
71°
45°
10
72°
46°
11
77°
48°
12
82°
49°
13
82°
51°
14
83°
52°
15
79°
50°
16
68°
41°
17
72°
45°
18
73°
41°
19
62°
36°
20
64°
38°
21
72°
40°
22
74°
48°
23
74°
47°
24
67°
44°
25
73°
45°
26
75°
48°
27
75°
46°
28
66°
44°
29
64°
43°
30
66°
42°
31
71°
43°
1
73°
46°
2
76°
47°
3
77°
49°
4
78°
50°
5
78°
48°
6
79°
50°
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 62° to 83°, with overnight lows between 36° and 52°. The average high for May is 73° 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.
