S
M
T
W
T
F
S
26
63°
48°
27
68°
41°
28
73°
37°
29
77°
41°
30
73°
52°
1
75°
52°
2
73°
52°
3
64°
50°
4
68°
41°
5
70°
48°
6
75°
52°
7
79°
50°
8
75°
52°
9
79°
50°
10
84°
50°
11
91°
50°
12
73°
48°
13
73°
48°
14
75°
46°
15
73°
50°
16
72°
46°
17
70°
45°
18
79°
41°
19
86°
43°
20
90°
45°
21
84°
46°
22
75°
50°
23
72°
52°
24
75°
48°
25
73°
46°
26
68°
54°
27
66°
48°
28
61°
46°
29
73°
50°
30
77°
50°
31
81°
48°
1
74°
52°
2
71°
52°
3
75°
50°
4
70°
51°
5
69°
52°
6
70°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Las Cruces
Las Cruces's May 2026 forecast shows daily high temperatures ranging from 69° to 75°, with overnight lows between 50° and 52°. The average high for May is 72° with an average low of 51°. 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 Las Cruces. See also: June | July | August.