S
M
T
W
T
F
S
30
91°
67°
31
89°
67°
1
85°
65°
2
84°
64°
3
84°
64°
4
82°
62°
5
82°
63°
6
83°
60°
7
80°
59°
8
82°
63°
9
87°
60°
10
83°
59°
11
78°
62°
12
79°
59°
13
77°
52°
14
74°
51°
15
73°
52°
16
74°
52°
17
75°
55°
18
76°
60°
19
83°
61°
20
83°
61°
21
84°
62°
22
80°
58°
23
76°
58°
24
77°
54°
25
73°
55°
26
76°
54°
27
79°
56°
28
78°
54°
29
79°
53°
30
80°
45°
1
67°
44°
2
66°
49°
3
70°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Salt Lake City
Salt Lake City's September 2026 forecast shows daily high temperatures ranging from 66° to 91°, with overnight lows between 42° and 67°. The average high for September is 79° with an average low of 57°. 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 Salt Lake City. See also: October | November | December.
