S
M
T
W
T
F
S
30
90°
68°
31
90°
69°
1
89°
68°
2
91°
68°
3
90°
67°
4
89°
68°
5
89°
67°
6
88°
67°
7
90°
66°
8
90°
67°
9
89°
67°
10
90°
66°
11
90°
67°
12
89°
66°
13
89°
67°
14
87°
64°
15
89°
64°
16
87°
62°
17
88°
63°
18
88°
56°
19
78°
54°
20
78°
55°
21
82°
55°
22
83°
56°
23
85°
58°
24
84°
59°
25
84°
58°
26
83°
57°
27
80°
58°
28
82°
58°
29
80°
54°
30
78°
55°
1
82°
57°
2
82°
56°
3
81°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Park City
Park City's September 2026 forecast shows daily high temperatures ranging from 78° to 91°, with overnight lows between 54° and 69°. The average high for September is 86° with an average low of 62°. 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 City. See also: October | November | December.
