S
M
T
W
T
F
S
26
93°
77°
27
93°
77°
28
93°
78°
29
94°
76°
30
95°
79°
1
91°
78°
2
93°
77°
3
92°
77°
4
95°
78°
5
95°
78°
6
97°
80°
7
93°
79°
8
95°
77°
9
93°
76°
10
92°
78°
11
94°
78°
12
92°
81°
13
95°
78°
14
92°
78°
15
93°
77°
16
88°
79°
17
88°
79°
18
90°
79°
19
89°
79°
20
92°
79°
21
91°
80°
22
91°
79°
23
89°
81°
24
87°
81°
25
87°
81°
26
86°
81°
27
87°
80°
28
86°
81°
29
85°
82°
30
86°
74°
31
87°
74°
1
86°
75°
2
86°
75°
3
87°
74°
4
85°
75°
5
85°
74°
6
86°
74°
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 85° to 92°, with overnight lows between 74° and 82°. The average high for May is 87° with an average low of 78°. 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.
