S
M
T
W
T
F
S
30
81°
60°
31
83°
57°
1
85°
55°
2
86°
62°
3
88°
60°
4
91°
56°
5
91°
59°
6
91°
59°
7
81°
62°
8
86°
52°
9
88°
54°
10
90°
62°
11
86°
62°
12
91°
58°
13
78°
48°
14
81°
54°
15
86°
58°
16
87°
60°
17
86°
59°
18
88°
59°
19
87°
58°
20
85°
58°
21
81°
50°
22
73°
50°
23
73°
45°
24
74°
50°
25
73°
45°
26
74°
45°
27
75°
49°
28
71°
42°
29
69°
41°
30
66°
40°
1
67°
40°
2
68°
39°
3
69°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Provo
Provo's September 2026 forecast shows daily high temperatures ranging from 66° to 91°, with overnight lows between 39° and 62°. The average high for September is 79° with an average low of 51°. 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 Provo. See also: October | November | December.
