S
M
T
W
T
F
S
26
82°
56°
27
82°
64°
28
74°
62°
29
80°
59°
30
66°
51°
1
63°
46°
2
68°
45°
3
70°
40°
4
78°
48°
5
75°
56°
6
76°
55°
7
69°
48°
8
74°
56°
9
77°
57°
10
81°
57°
11
73°
48°
12
74°
49°
13
76°
54°
14
82°
55°
15
81°
59°
16
84°
60°
17
81°
60°
18
83°
63°
19
84°
63°
20
77°
57°
21
76°
60°
22
77°
62°
23
77°
62°
24
78°
61°
25
77°
62°
26
77°
62°
27
78°
61°
28
78°
63°
29
79°
61°
30
76°
61°
31
77°
63°
1
78°
63°
2
79°
62°
3
79°
64°
4
80°
65°
5
80°
65°
6
81°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lumbull
Lumbull's May 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 48° and 65°. The average high for May is 78° with an average low of 60°. 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 Lumbull. See also: June | July | August.