Plainwell, MI Weather & Growing Conditions
Today
84°F
Sunny
Sunny, with a high near 84. Southwest wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 7 mph SW | 0% |
| Tonight | 60°F | Mostly Clear | 2 to 6 mph SSW | 0% |
| Wednesday | 82°F | Chance Rain Showers then Chance Showers And Thunderstorms | 3 to 8 mph SW | 43% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 1 to 7 mph WSW | 85% |
| Thursday | 79°F | Showers And Thunderstorms | 1 to 6 mph SW | 85% |
| Thursday Night | 58°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph WSW | 54% |
| Friday | 83°F | Mostly Sunny | 0 to 5 mph SW | 12% |
| Friday Night | 59°F | Mostly Clear | 0 to 5 mph WSW | 12% |
| Saturday | 84°F | Sunny | 1 to 9 mph SW | 10% |
| Saturday Night | 65°F | Chance Rain Showers | 3 to 8 mph SW | 27% |
| Sunday | 85°F | Chance Rain Showers | 6 to 13 mph SW | 27% |
| Sunday Night | 65°F | Chance Rain Showers | 5 to 12 mph SW | 44% |
| Monday | 84°F | Chance Rain Showers | 5 to 10 mph WSW | 44% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 to 9 mph WSW | 51% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plainwell, MI
Last spring frost
Apr 29
First fall frost
Oct 20
Growing season
173 days
Hardiness zone
6a
Explore more for Plainwell, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Gull Lake Biological Stn, Mi (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.