S
M
T
W
T
F
S
26
88°
65°
27
84°
59°
28
87°
62°
29
86°
69°
30
74°
61°
1
66°
53°
2
71°
51°
3
80°
53°
4
86°
63°
5
78°
64°
6
79°
59°
7
82°
52°
8
88°
52°
9
95°
59°
10
91°
68°
11
87°
58°
12
95°
64°
13
97°
64°
14
95°
70°
15
93°
76°
16
91°
71°
17
92°
67°
18
93°
70°
19
90°
62°
20
89°
64°
21
88°
62°
22
90°
65°
23
90°
64°
24
91°
68°
25
92°
67°
26
86°
66°
27
90°
65°
28
90°
66°
29
92°
69°
30
89°
70°
31
90°
69°
1
93°
66°
2
96°
70°
3
96°
69°
4
88°
67°
5
89°
69°
6
95°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in La Union
La Union's May 2026 forecast shows daily high temperatures ranging from 86° to 96°, with overnight lows between 62° and 71°. The average high for May is 91° with an average low of 67°. 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 La Union. See also: June | July | August.
