S
M
T
W
T
F
S
26
68°
43°
27
57°
47°
28
56°
46°
29
66°
47°
30
75°
48°
1
72°
52°
2
74°
49°
3
79°
53°
4
79°
52°
5
73°
49°
6
69°
49°
7
66°
45°
8
62°
51°
9
70°
50°
10
74°
53°
11
73°
52°
12
73°
52°
13
72°
51°
14
74°
52°
15
72°
51°
16
66°
48°
17
67°
47°
18
60°
46°
19
60°
44°
20
61°
44°
21
70°
52°
22
70°
50°
23
66°
47°
24
71°
53°
25
70°
50°
26
68°
48°
27
71°
53°
28
72°
54°
29
73°
53°
30
74°
54°
31
75°
55°
1
74°
54°
2
72°
53°
3
73°
54°
4
72°
51°
5
71°
51°
6
70°
49°
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 55°. The average high for May is 70° with an average low of 51°. 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.
