S
M
T
W
T
F
S
30
89°
58°
31
88°
57°
1
87°
52°
2
83°
50°
3
81°
53°
4
82°
56°
5
83°
54°
6
88°
55°
7
80°
51°
8
81°
52°
9
79°
54°
10
80°
50°
11
80°
48°
12
86°
47°
13
84°
53°
14
86°
47°
15
Hist. Avg.
82°
48°
16
Hist. Avg.
81°
48°
17
Hist. Avg.
81°
47°
18
Hist. Avg.
80°
47°
19
Hist. Avg.
80°
46°
20
Hist. Avg.
80°
46°
21
Hist. Avg.
79°
45°
22
Hist. Avg.
79°
45°
23
Hist. Avg.
78°
44°
24
Hist. Avg.
78°
44°
25
Hist. Avg.
77°
43°
26
Hist. Avg.
77°
43°
27
Hist. Avg.
76°
42°
28
Hist. Avg.
76°
42°
29
Hist. Avg.
75°
41°
30
Hist. Avg.
75°
41°
1
Hist. Avg.
74°
40°
2
Hist. Avg.
74°
40°
3
Hist. Avg.
73°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Imperial
Imperial's September 2026 forecast shows daily high temperatures ranging from 79° to 89°, with overnight lows between 47° and 58°. The average high for September is 84° with an average low of 52°. 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 Imperial. See also: October | November | December.
