S
M
T
W
T
F
S
26
90°
62°
27
93°
63°
28
94°
64°
29
95°
65°
30
96°
66°
31
96°
68°
1
97°
67°
2
97°
68°
3
96°
68°
4
96°
67°
5
95°
67°
6
96°
66°
7
95°
67°
8
96°
68°
9
96°
68°
10
97°
67°
11
96°
68°
12
97°
68°
13
96°
65°
14
94°
67°
15
97°
68°
16
96°
67°
17
95°
65°
18
94°
64°
19
93°
65°
20
94°
65°
21
95°
68°
22
97°
69°
23
99°
69°
24
99°
68°
25
98°
70°
26
99°
69°
27
98°
68°
28
99°
68°
29
98°
65°
30
97°
65°
31
94°
67°
1
97°
67°
2
97°
66°
3
96°
65°
4
94°
62°
5
92°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Jurupa Valley
Jurupa Valley's August 2026 forecast shows daily high temperatures ranging from 90° to 99°, with overnight lows between 61° and 70°. The average high for August is 96° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Jurupa Valley. See also: September | October | November.