S
M
T
W
T
F
S
30
92°
63°
31
94°
61°
1
93°
60°
2
94°
59°
3
92°
57°
4
90°
58°
5
89°
58°
6
90°
59°
7
91°
60°
8
93°
58°
9
91°
57°
10
90°
58°
11
90°
59°
12
91°
61°
13
92°
63°
14
95°
62°
15
95°
63°
16
94°
65°
17
96°
63°
18
96°
63°
19
93°
64°
20
94°
63°
21
93°
60°
22
92°
58°
23
87°
60°
24
89°
59°
25
93°
61°
26
87°
58°
27
Hist. Avg.
88°
57°
28
Hist. Avg.
87°
57°
29
Hist. Avg.
87°
56°
30
Hist. Avg.
87°
56°
1
Hist. Avg.
87°
56°
2
Hist. Avg.
86°
56°
3
Hist. Avg.
86°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Corona
Corona's September 2026 forecast shows daily high temperatures ranging from 87° to 96°, with overnight lows between 57° and 65°. The average high for September is 92° with an average low of 60°. 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 Corona. See also: October | November | December.