S
M
T
W
T
F
S
31
76°
56°
1
79°
57°
2
82°
56°
3
83°
55°
4
82°
51°
5
84°
51°
6
85°
50°
7
86°
55°
8
87°
56°
9
88°
52°
10
81°
59°
11
83°
59°
12
86°
62°
13
87°
62°
14
85°
53°
15
87°
54°
16
91°
56°
17
93°
64°
18
94°
56°
19
91°
55°
20
91°
55°
21
92°
56°
22
93°
58°
23
94°
61°
24
98°
64°
25
99°
66°
26
100°
66°
27
98°
61°
28
98°
65°
29
100°
67°
30
98°
68°
1
102°
66°
2
97°
68°
3
94°
65°
4
94°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Grand Junction
Grand Junction's June 2026 forecast shows daily high temperatures ranging from 76° to 102°, with overnight lows between 50° and 68°. The average high for June is 90° 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 Grand Junction. See also: July | August | September.