S
M
T
W
T
F
S
31
89°
53°
1
94°
55°
2
91°
56°
3
93°
57°
4
95°
58°
5
96°
60°
6
83°
57°
7
87°
52°
8
84°
56°
9
87°
58°
10
97°
58°
11
79°
74°
12
102°
69°
13
100°
63°
14
95°
60°
15
91°
59°
16
89°
58°
17
88°
57°
18
85°
56°
19
82°
55°
20
84°
55°
21
90°
56°
22
92°
56°
23
96°
57°
24
94°
60°
25
97°
61°
26
96°
60°
27
97°
63°
28
95°
60°
29
91°
57°
30
101°
58°
1
93°
60°
2
93°
61°
3
92°
61°
4
94°
62°
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 101°, with overnight lows between 55° and 63°. The average high for June is 92° with an average low of 59°. 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.