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Grand Rapids, MI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Grand Rapids, a city in Kent County, Michigan.

Today
65°F
Patchy Fog
Patchy fog and showers and thunderstorms before 2pm, then patchy fog and showers and thunderstorms likely. Mostly cloudy, with a high near 65. East southeast wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast for Grand Rapids

WhenTempForecastWindPrecip
Today 65°F Patchy Fog 9 mph ESE 92%
Tonight 59°F Patchy Fog 3 to 7 mph E 92%
Sunday 69°F Chance Rain Showers then Mostly Cloudy 7 to 12 mph NE 51%
Sunday Night 51°F Mostly Cloudy 10 mph NE 1%
Monday 63°F Mostly Cloudy 9 to 14 mph ENE 3%
Monday Night 47°F Mostly Cloudy 8 to 14 mph ENE 3%
Tuesday 63°F Partly Sunny 10 to 14 mph ENE 3%
Tuesday Night 49°F Mostly Cloudy 10 to 14 mph ENE 13%
Wednesday 63°F Chance Rain Showers 13 mph ENE 28%
Wednesday Night 50°F Chance Rain Showers then Mostly Cloudy 6 to 12 mph NE 28%
Thursday 67°F Partly Sunny 8 mph NE 2%
Thursday Night 50°F Mostly Cloudy 3 to 7 mph NE 2%
Friday 71°F Mostly Sunny 3 to 7 mph NE 4%
Friday Night 49°F Partly Cloudy 6 mph ENE 4%

Forecast source: National Weather Service (api.weather.gov) for Grand Rapids (42.961, -85.656). Updated through the day.

Growing snapshot for Grand Rapids

Last spring frost
May 6
First fall frost
Oct 10
Growing season
157 days
Hardiness zone
6a

More local growing data for Grand Rapids: nearby ZIP 49503 weather · frost dates · planting calendar · Michigan frost dates

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Climate data from the nearest NOAA station, E Grand Rapids, Mi (2.9 mi from Grand Rapids). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.