S
M
T
W
T
F
S
26
67°
48°
27
66°
49°
28
69°
45°
29
65°
44°
30
66°
46°
1
71°
48°
2
71°
49°
3
70°
49°
4
66°
46°
5
65°
46°
6
65°
47°
7
66°
47°
8
69°
49°
9
72°
50°
10
73°
51°
11
73°
51°
12
72°
50°
13
72°
49°
14
71°
50°
15
70°
51°
16
71°
50°
17
71°
51°
18
72°
50°
19
69°
50°
20
69°
49°
21
67°
49°
22
67°
50°
23
71°
51°
24
72°
50°
25
69°
51°
26
74°
52°
27
75°
51°
28
75°
52°
29
70°
46°
30
68°
47°
31
69°
50°
1
71°
51°
2
75°
51°
3
76°
50°
4
76°
51°
5
75°
52°
6
76°
53°
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 65° to 76°, with overnight lows between 44° and 53°. The average high for May is 70° with an average low of 49°. 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.