S
M
T
W
T
F
S
30
94°
65°
31
91°
67°
1
94°
67°
2
95°
66°
3
94°
65°
4
92°
62°
5
90°
61°
6
88°
62°
7
87°
59°
8
86°
60°
9
86°
61°
10
88°
63°
11
88°
64°
12
90°
63°
13
92°
63°
14
92°
61°
15
88°
60°
16
87°
64°
17
87°
66°
18
91°
66°
19
90°
65°
20
92°
66°
21
92°
66°
22
87°
64°
23
87°
60°
24
86°
59°
25
85°
58°
26
83°
59°
27
83°
61°
28
86°
60°
29
84°
60°
30
84°
58°
1
Hist. Avg.
82°
64°
2
Hist. Avg.
82°
64°
3
Hist. Avg.
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Covina
Covina's September 2026 forecast shows daily high temperatures ranging from 83° to 95°, with overnight lows between 58° and 67°. The average high for September is 89° with an average low of 63°. 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 Covina. See also: October | November | December.
