S
M
T
W
T
F
S
30
82°
64°
31
84°
61°
1
73°
56°
2
70°
50°
3
71°
49°
4
73°
49°
5
73°
53°
6
74°
57°
7
73°
53°
8
73°
54°
9
74°
53°
10
73°
51°
11
77°
55°
12
76°
55°
13
77°
54°
14
75°
45°
15
81°
52°
16
80°
51°
17
77°
47°
18
73°
44°
19
77°
49°
20
77°
48°
21
76°
44°
22
77°
48°
23
78°
49°
24
76°
46°
25
74°
41°
26
74°
48°
27
73°
47°
28
67°
42°
29
72°
43°
30
74°
45°
1
73°
46°
2
72°
43°
3
64°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Park Valley
Park Valley's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 40° and 57°. The average high for September is 74° 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 Park Valley. See also: October | November | December.
