S
M
T
W
T
F
S
30
84°
62°
31
65°
59°
1
82°
54°
2
85°
57°
3
N/A
4
85°
58°
5
87°
60°
6
87°
59°
7
85°
58°
8
85°
57°
9
86°
58°
10
83°
55°
11
85°
57°
12
82°
55°
13
80°
54°
14
81°
54°
15
84°
55°
16
84°
53°
17
82°
49°
18
78°
53°
19
78°
52°
20
79°
50°
21
78°
50°
22
82°
52°
23
83°
52°
24
74°
51°
25
74°
49°
26
73°
50°
27
73°
49°
28
74°
49°
29
72°
45°
30
72°
47°
1
74°
49°
2
77°
48°
3
79°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Petrified Forest National Park
Petrified Forest National Park's September 2026 forecast shows daily high temperatures ranging from 72° to 87°, with overnight lows between 45° and 60°. The average high for September is 80° with an average low of 53°. 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 Petrified Forest National Park. See also: October | November | December.
