S
M
T
W
T
F
S
26
63°
38°
27
73°
38°
28
63°
52°
29
60°
46°
30
50°
44°
1
50°
39°
2
49°
31°
3
62°
31°
4
76°
42°
5
73°
49°
6
51°
44°
7
56°
35°
8
59°
37°
9
67°
46°
10
61°
39°
11
56°
34°
12
63°
31°
13
71°
48°
14
48°
45°
15
67°
45°
16
81°
43°
17
84°
58°
18
93°
62°
19
88°
66°
20
74°
51°
21
63°
45°
22
66°
37°
23
60°
48°
24
69°
59°
25
77°
55°
26
82°
58°
27
79°
53°
28
73°
50°
29
66°
48°
30
68°
48°
31
69°
52°
1
71°
53°
2
71°
53°
3
70°
55°
4
73°
56°
5
72°
52°
6
70°
56°
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 66° to 82°, with overnight lows between 48° and 59°. The average high for May is 72° with an average low of 53°. 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.
