S
M
T
W
T
F
S
30
86°
59°
31
81°
58°
1
79°
61°
2
80°
63°
3
79°
58°
4
79°
57°
5
80°
60°
6
79°
62°
7
81°
58°
8
79°
56°
9
77°
62°
10
82°
55°
11
77°
54°
12
76°
54°
13
76°
57°
14
79°
59°
15
82°
60°
16
82°
60°
17
81°
59°
18
82°
58°
19
81°
50°
20
74°
51°
21
72°
54°
22
73°
56°
23
77°
56°
24
78°
57°
25
79°
51°
26
78°
48°
27
74°
49°
28
70°
48°
29
69°
48°
30
69°
47°
1
Hist. Avg.
73°
51°
2
Hist. Avg.
73°
51°
3
Hist. Avg.
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Utah
Utah's September 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 47° and 63°. The average high for September is 78° with an average low of 56°. 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 Utah. See also: October | November | December.
