S
M
T
W
T
F
S
31
68°
30°
1
79°
30°
2
73°
41°
3
71°
40°
4
72°
45°
5
76°
40°
6
77°
44°
7
76°
40°
8
70°
41°
9
75°
41°
10
77°
42°
11
77°
40°
12
73°
39°
13
77°
40°
14
74°
41°
15
70°
34°
16
64°
33°
17
62°
33°
18
64°
31°
19
66°
37°
20
71°
39°
21
70°
37°
22
69°
37°
23
75°
40°
24
76°
40°
25
76°
41°
26
73°
40°
27
76°
40°
28
77°
41°
29
76°
41°
30
73°
39°
1
76°
42°
2
77°
42°
3
78°
41°
4
75°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Grand Lake
Grand Lake's June 2026 forecast shows daily high temperatures ranging from 62° to 78°, with overnight lows between 31° and 45°. The average high for June is 73° with an average low of 40°. 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 Grand Lake. See also: July | August | September.
