Harman US

Mattawan, MI Weather & Growing Conditions

Tonight
62°F
Mostly Cloudy then Chance Rain Showers
A chance of rain showers after 4am. Mostly cloudy. Low around 62, with temperatures rising to around 64 overnight. South southeast wind 12 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

7-day forecast

WhenTempForecastWindPrecip
Tonight 62°F Mostly Cloudy then Chance Rain Showers 12 to 15 mph SSE 28%
Wednesday 68°F Rain Showers 12 to 15 mph SSW 86%
Wednesday Night 48°F Slight Chance Rain Showers then Mostly Cloudy 8 to 12 mph SW 17%
Thursday 56°F Chance Rain Showers 9 to 13 mph SW 46%
Thursday Night 41°F Rain Showers Likely 5 to 8 mph WNW 56%
Friday 50°F Chance Rain Showers 9 mph NNW 47%
Friday Night 34°F Chance Rain Showers then Mostly Cloudy 3 to 8 mph NNW 42%
Saturday 50°F Mostly Sunny 3 to 8 mph NW 5%
Saturday Night 32°F Partly Cloudy 5 mph W 1%
Sunday 53°F Mostly Sunny 5 to 10 mph W 14%
Sunday Night 35°F Mostly Clear 3 to 7 mph W 14%
Monday 58°F Sunny 3 to 9 mph WSW 4%
Monday Night 39°F Partly Cloudy 6 mph SW 2%
Tuesday 59°F Mostly Sunny 5 to 9 mph W 3%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Mattawan, MI

Last spring frost
Apr 28
First fall frost
Oct 18
Growing season
172 days
Hardiness zone
6a

Explore more for Mattawan, MI: full frost dates · planting calendar · Michigan frost dates

Climate data from the nearest NOAA station, Kalamazoo Battle Ck Intl Ap, Mi (11.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.