S
M
T
W
T
F
S
31
86°
57°
1
89°
59°
2
81°
63°
3
83°
60°
4
82°
61°
5
89°
62°
6
86°
60°
7
85°
61°
8
86°
63°
9
89°
64°
10
94°
66°
11
89°
63°
12
92°
61°
13
90°
63°
14
84°
57°
15
89°
59°
16
78°
55°
17
76°
54°
18
77°
54°
19
79°
56°
20
87°
64°
21
90°
64°
22
84°
62°
23
88°
65°
24
91°
66°
25
92°
66°
26
91°
65°
27
91°
66°
28
92°
67°
29
92°
66°
30
91°
65°
1
90°
66°
2
92°
67°
3
93°
67°
4
90°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Grinnell
Grinnell's June 2026 forecast shows daily high temperatures ranging from 76° to 94°, with overnight lows between 54° and 67°. The average high for June is 87° 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 Grinnell. See also: July | August | September.
