S
M
T
W
T
F
S
30
90°
56°
31
89°
58°
1
89°
61°
2
92°
63°
3
94°
64°
4
95°
62°
5
94°
61°
6
94°
61°
7
93°
63°
8
95°
60°
9
94°
57°
10
92°
59°
11
90°
56°
12
85°
59°
13
89°
55°
14
88°
54°
15
88°
56°
16
87°
54°
17
90°
57°
18
92°
55°
19
90°
53°
20
87°
54°
21
89°
55°
22
88°
53°
23
89°
55°
24
91°
50°
25
81°
54°
26
85°
53°
27
89°
51°
28
88°
47°
29
82°
48°
30
86°
47°
1
86°
42°
2
79°
43°
3
79°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in White Sands National Monument
White Sands National Monument's September 2026 forecast shows daily high temperatures ranging from 79° to 95°, with overnight lows between 42° and 64°. The average high for September is 89° with an average low of 55°. 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 White Sands National Monument. See also: October | November | December.