S
M
T
W
T
F
S
30
87°
48°
31
87°
50°
1
88°
45°
2
80°
44°
3
78°
44°
4
81°
46°
5
84°
49°
6
81°
46°
7
81°
40°
8
74°
43°
9
74°
42°
10
76°
45°
11
78°
41°
12
84°
42°
13
75°
49°
14
83°
53°
15
86°
44°
16
83°
40°
17
73°
41°
18
75°
40°
19
81°
40°
20
80°
45°
21
80°
49°
22
81°
48°
23
76°
46°
24
70°
45°
25
74°
47°
26
77°
47°
27
75°
46°
28
77°
47°
29
75°
47°
30
68°
41°
1
67°
36°
2
66°
35°
3
66°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Brigham City
Brigham City's September 2026 forecast shows daily high temperatures ranging from 66° to 88°, with overnight lows between 35° and 53°. The average high for September is 78° with an average low of 44°. 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 Brigham City. See also: October | November | December.
