S
M
T
W
T
F
S
30
95°
69°
31
94°
68°
1
91°
67°
2
93°
66°
3
95°
66°
4
94°
68°
5
95°
68°
6
96°
69°
7
96°
69°
8
93°
68°
9
90°
68°
10
91°
67°
11
91°
68°
12
92°
69°
13
93°
68°
14
95°
69°
15
94°
68°
16
94°
66°
17
92°
65°
18
90°
68°
19
90°
67°
20
Hist. Avg.
84°
66°
21
Hist. Avg.
84°
66°
22
Hist. Avg.
83°
65°
23
Hist. Avg.
83°
65°
24
Hist. Avg.
83°
65°
25
Hist. Avg.
83°
65°
26
Hist. Avg.
83°
65°
27
Hist. Avg.
83°
65°
28
Hist. Avg.
83°
65°
29
Hist. Avg.
83°
65°
30
Hist. Avg.
83°
65°
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
*Temporarily Unavailable
September Weather in Duarte
Duarte's September 2026 forecast shows daily high temperatures ranging from 90° to 96°, with overnight lows between 65° and 69°. The average high for September is 93° with an average low of 68°. 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 Duarte. See also: October | November | December.
