S
M
T
W
T
F
S
30
98°
68°
31
98°
67°
1
97°
68°
2
98°
68°
3
98°
70°
4
95°
68°
5
98°
65°
6
97°
58°
7
90°
59°
8
89°
61°
9
90°
62°
10
92°
65°
11
95°
63°
12
96°
64°
13
94°
67°
14
95°
66°
15
95°
63°
16
93°
62°
17
93°
63°
18
92°
65°
19
93°
63°
20
92°
59°
21
90°
64°
22
86°
64°
23
83°
59°
24
85°
64°
25
85°
61°
26
88°
58°
27
85°
59°
28
84°
61°
29
84°
56°
30
82°
61°
1
82°
65°
2
90°
62°
3
84°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Jurupa Valley
Jurupa Valley's September 2026 forecast shows daily high temperatures ranging from 82° to 98°, with overnight lows between 56° and 70°. The average high for September is 91° 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 Jurupa Valley. See also: October | November | December.
