S
M
T
W
T
F
S
26
84°
68°
27
92°
73°
28
84°
72°
29
71°
61°
30
64°
60°
1
65°
55°
2
76°
51°
3
81°
55°
4
83°
60°
5
90°
61°
6
67°
52°
7
73°
52°
8
75°
60°
9
90°
66°
10
81°
63°
11
78°
58°
12
85°
59°
13
91°
64°
14
91°
69°
15
89°
70°
16
88°
70°
17
89°
77°
18
89°
76°
19
82°
67°
20
76°
67°
21
76°
65°
22
77°
66°
23
82°
66°
24
83°
67°
25
81°
66°
26
83°
69°
27
83°
70°
28
82°
69°
29
83°
69°
30
88°
68°
31
86°
71°
1
85°
72°
2
86°
72°
3
84°
68°
4
84°
66°
5
85°
68°
6
85°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lakeside
Lakeside's May 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 65° and 77°. The average high for May is 83° with an average low of 69°. 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 Lakeside. See also: June | July | August.