S
M
T
W
T
F
S
30
79°
45°
31
78°
51°
1
81°
48°
2
82°
44°
3
80°
42°
4
81°
43°
5
83°
49°
6
83°
46°
7
78°
44°
8
78°
41°
9
77°
42°
10
79°
46°
11
85°
46°
12
83°
44°
13
83°
48°
14
85°
49°
15
84°
48°
16
83°
45°
17
79°
47°
18
81°
46°
19
82°
42°
20
81°
44°
21
80°
45°
22
77°
46°
23
78°
44°
24
75°
45°
25
76°
44°
26
78°
41°
27
74°
44°
28
77°
44°
29
77°
43°
30
78°
43°
1
75°
42°
2
76°
41°
3
68°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Salt Lake
Salt Lake's September 2026 forecast shows daily high temperatures ranging from 68° to 85°, with overnight lows between 38° and 51°. The average high for September is 79° with an average low of 45°. 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. See also: October | November | December.
