S
M
T
W
T
F
S
31
90°
57°
1
88°
58°
2
86°
58°
3
89°
57°
4
90°
58°
5
88°
59°
6
84°
59°
7
84°
60°
8
85°
60°
9
87°
58°
10
94°
61°
11
94°
62°
12
100°
65°
13
94°
64°
14
92°
63°
15
94°
63°
16
92°
61°
17
86°
58°
18
82°
60°
19
82°
58°
20
83°
58°
21
85°
58°
22
91°
63°
23
94°
65°
24
95°
65°
25
97°
63°
26
95°
62°
27
96°
61°
28
91°
61°
29
92°
62°
30
92°
62°
1
93°
63°
2
91°
62°
3
94°
64°
4
95°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Riverside
Riverside's June 2026 forecast shows daily high temperatures ranging from 82° to 97°, with overnight lows between 58° and 66°. The average high for June is 92° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Riverside. See also: July | August | September.