S
M
T
W
T
F
S
30
91°
61°
31
89°
67°
1
93°
66°
2
92°
66°
3
92°
62°
4
91°
66°
5
93°
66°
6
94°
64°
7
94°
64°
8
93°
63°
9
94°
65°
10
94°
66°
11
93°
64°
12
94°
63°
13
91°
61°
14
89°
63°
15
92°
62°
16
91°
62°
17
91°
61°
18
87°
60°
19
89°
60°
20
89°
54°
21
82°
52°
22
81°
52°
23
82°
54°
24
83°
53°
25
83°
58°
26
88°
58°
27
88°
57°
28
87°
57°
29
85°
56°
30
84°
56°
1
87°
57°
2
88°
55°
3
85°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Las Cruces
Las Cruces's September 2026 forecast shows daily high temperatures ranging from 81° to 94°, with overnight lows between 52° and 67°. The average high for September is 89° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Las Cruces. See also: October | November | December.
