S
M
T
W
T
F
S
31
84°
63°
1
83°
61°
2
84°
57°
3
83°
58°
4
81°
58°
5
81°
59°
6
79°
60°
7
78°
59°
8
81°
62°
9
79°
67°
10
82°
64°
11
85°
66°
12
79°
67°
13
80°
66°
14
80°
64°
15
81°
62°
16
84°
64°
17
88°
63°
18
84°
66°
19
82°
69°
20
88°
69°
21
89°
62°
22
83°
60°
23
81°
60°
24
81°
62°
25
82°
60°
26
82°
63°
27
84°
66°
28
86°
62°
29
83°
64°
30
84°
70°
1
90°
66°
2
83°
63°
3
85°
63°
4
83°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Grain Valley
Grain Valley's June 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 57° and 70°. The average high for June is 83° with an average low of 63°. 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 Grain Valley. See also: July | August | September.
