S
M
T
W
T
F
S
26
64°
45°
27
76°
44°
28
69°
52°
29
64°
53°
30
54°
38°
1
63°
35°
2
52°
34°
3
60°
34°
4
73°
49°
5
78°
61°
6
66°
50°
7
62°
42°
8
67°
36°
9
68°
51°
10
65°
48°
11
64°
44°
12
73°
40°
13
69°
48°
14
52°
44°
15
68°
47°
16
78°
61°
17
84°
60°
18
93°
68°
19
91°
66°
20
72°
49°
21
65°
47°
22
69°
50°
23
76°
55°
24
75°
55°
25
77°
59°
26
77°
57°
27
78°
58°
28
77°
53°
29
75°
58°
30
75°
57°
31
70°
53°
1
70°
51°
2
71°
49°
3
69°
50°
4
71°
51°
5
76°
59°
6
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mount Morris
Mount Morris's May 2026 forecast shows daily high temperatures ranging from 65° to 93°, with overnight lows between 47° and 68°. The average high for May is 76° 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 Mount Morris. See also: June | July | August.
