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Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Grand Rapids, MI
Content continues below
September
Average Temperature
High
23°
Feels 24
Low
12°
Feels 12
Average Precipitation
10 Days
Rain amount
70.2mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
25°
10
26°
11
24°
12
27°
13
24°
14
23°
15
22°
16
22°
17
22°
18
20°
19
19°
20
19°
21
19°
22
20°
23
19°
24
25
26
27
28
29
30
Forecast
Wednesday, September 9, 2026
Day
25°
Feels 25
Wind
20 km/h W
Gust
30 km/h
Humidity
74%
P.O.P
90%
Rain
~1 mm
Night
16°
Feels 16
Wind
17 km/h W
Gust
26 km/h
Humidity
100%
P.O.P
20%
Historical Averages
Sep 9
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.