S
M
T
W
T
F
S
30
85°
56°
31
81°
56°
1
80°
55°
2
79°
53°
3
80°
54°
4
80°
52°
5
81°
52°
6
81°
51°
7
81°
52°
8
81°
51°
9
80°
51°
10
80°
50°
11
79°
51°
12
80°
51°
13
80°
50°
14
79°
50°
15
79°
49°
16
78°
49°
17
79°
48°
18
78°
47°
19
78°
47°
20
77°
48°
21
77°
47°
22
76°
46°
23
76°
45°
24
75°
45°
25
74°
44°
26
74°
45°
27
73°
45°
28
74°
44°
29
74°
43°
30
73°
44°
1
74°
44°
2
74°
43°
3
73°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Walnut Canyon National Monument
Walnut Canyon National Monument's September 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 42° and 56°. The average high for September is 78° 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 September weather will actually feel in Walnut Canyon National Monument. See also: October | November | December.
