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Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Grinnell, IA
Content continues below
June
Average Temperature
High
27°
Feels 28
Low
16°
Feels 16
Average Precipitation
13 Days
Rain amount
141mm
Snow amount
0cm
Content continues below
Daily Historical Averages
June 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
19°
22
24°
23
24°
24
26°
25
24°
26
24°
27
25°
28
28°
29
30°
30
31°
Forecast
Sunday, June 21, 2026
Day
19°
Feels 19
Wind
29 km/h E
Gust
44 km/h
Humidity
73%
P.O.P
100%
Rain
25-35 mm
Night
13°
Feels 12
Wind
23 km/h N
Gust
35 km/h
Humidity
100%
P.O.P
40%
Rain
<1 mm
Historical Averages
Jun 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.