S
M
T
W
T
F
S
30
82°
53°
31
82°
54°
1
81°
52°
2
80°
50°
3
80°
52°
4
81°
47°
5
79°
48°
6
79°
48°
7
80°
47°
8
80°
46°
9
78°
44°
10
77°
50°
11
79°
49°
12
84°
47°
13
84°
43°
14
75°
42°
15
74°
40°
16
75°
42°
17
76°
42°
18
81°
44°
19
83°
43°
20
83°
44°
21
82°
46°
22
82°
49°
23
83°
50°
24
83°
48°
25
80°
47°
26
76°
40°
27
71°
45°
28
74°
47°
29
75°
46°
30
71°
44°
1
70°
45°
2
69°
44°
3
Hist. Avg.
72°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lehi
Lehi's September 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 40° and 54°. The average high for September is 79° with an average low of 46°. 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 Lehi. See also: October | November | December.
