Mattawan, MI Weather & Growing Conditions
Overnight
55°F
Showers And Thunderstorms Likely
A chance of rain showers before 5am, then showers and thunderstorms likely. Mostly cloudy. Low around 55, with temperatures rising to around 58 overnight. East wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Showers And Thunderstorms Likely | 8 mph E | 65% |
| Saturday | 70°F | Showers And Thunderstorms | 6 to 9 mph SE | 97% |
| Saturday Night | 60°F | Patchy Fog | 5 mph SE | 91% |
| Sunday | 68°F | Chance Rain Showers then Mostly Cloudy | 5 to 12 mph NNE | 51% |
| Sunday Night | 50°F | Mostly Cloudy | 10 mph NE | 9% |
| Monday | 62°F | Mostly Cloudy | 12 mph ENE | 11% |
| Monday Night | 46°F | Mostly Cloudy | 8 to 12 mph NE | 10% |
| Tuesday | 62°F | Partly Sunny | 10 to 14 mph NE | 9% |
| Tuesday Night | 48°F | Slight Chance Rain Showers | 8 to 14 mph NE | 21% |
| Wednesday | 63°F | Chance Rain Showers | 12 mph NE | 37% |
| Wednesday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 24% |
| Thursday | 66°F | Partly Sunny | 5 to 8 mph NE | 5% |
| Thursday Night | 49°F | Mostly Cloudy | 2 to 7 mph NE | 5% |
| Friday | 70°F | Mostly Sunny | 3 to 8 mph NE | 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 Sep 19, 2026.