S
M
T
W
T
F
S
30
95°
61°
31
89°
63°
1
88°
61°
2
86°
57°
3
84°
60°
4
85°
61°
5
84°
64°
6
88°
68°
7
88°
66°
8
89°
65°
9
87°
64°
10
86°
65°
11
86°
61°
12
87°
65°
13
88°
64°
14
88°
65°
15
88°
65°
16
87°
64°
17
88°
64°
18
85°
60°
19
82°
59°
20
83°
59°
21
83°
61°
22
85°
62°
23
85°
61°
24
82°
59°
25
78°
56°
26
78°
56°
27
77°
55°
28
78°
55°
29
79°
57°
30
79°
58°
1
78°
56°
2
80°
61°
3
85°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Poway
Poway's September 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 55° and 68°. The average high for September is 84° with an average low of 61°. 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 Poway. See also: October | November | December.
