S
M
T
W
T
F
S
31
93°
79°
1
96°
75°
2
87°
68°
3
88°
66°
4
87°
71°
5
82°
69°
6
81°
68°
7
80°
70°
8
83°
69°
9
87°
68°
10
90°
69°
11
90°
70°
12
89°
71°
13
90°
68°
14
89°
71°
15
87°
66°
16
88°
68°
17
82°
65°
18
82°
67°
19
81°
70°
20
83°
70°
21
86°
71°
22
87°
70°
23
84°
67°
24
86°
69°
25
87°
72°
26
88°
71°
27
90°
72°
28
89°
73°
29
89°
73°
30
90°
72°
1
92°
74°
2
93°
74°
3
94°
73°
4
94°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Keystone Lake
Keystone Lake's June 2026 forecast shows daily high temperatures ranging from 80° to 94°, with overnight lows between 65° and 74°. The average high for June is 87° with an average low of 70°. 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 Keystone Lake. See also: July | August | September.
