S
M
T
W
T
F
S
26
79°
50°
27
66°
57°
28
63°
54°
29
61°
45°
30
64°
39°
1
57°
43°
2
57°
43°
3
72°
43°
4
73°
55°
5
57°
45°
6
60°
41°
7
66°
48°
8
66°
49°
9
75°
58°
10
64°
43°
11
67°
46°
12
68°
49°
13
73°
53°
14
74°
55°
15
76°
52°
16
71°
54°
17
70°
52°
18
73°
54°
19
76°
53°
20
71°
50°
21
69°
49°
22
69°
50°
23
71°
51°
24
72°
54°
25
72°
53°
26
73°
52°
27
73°
53°
28
74°
53°
29
75°
56°
30
79°
58°
31
80°
60°
1
81°
61°
2
79°
59°
3
82°
62°
4
83°
63°
5
84°
64°
6
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Assumption
Assumption's May 2026 forecast shows daily high temperatures ranging from 60° to 84°, with overnight lows between 41° and 64°. The average high for May is 73° with an average low of 54°. 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 Assumption. See also: June | July | August.
