Plainwell, MI Weather & Growing Conditions
Tonight
60°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 60, with temperatures rising to around 63 overnight. East southeast wind 2 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Showers And Thunderstorms | 2 to 6 mph ESE | 87% |
| Sunday | 68°F | Showers And Thunderstorms Likely | 5 to 12 mph NE | 74% |
| Sunday Night | 48°F | Mostly Cloudy | 8 to 12 mph NE | 5% |
| Monday | 64°F | Slight Chance Rain Showers | 9 to 13 mph ENE | 16% |
| Monday Night | 46°F | Mostly Cloudy | 8 to 12 mph ENE | 11% |
| Tuesday | 62°F | Partly Sunny | 9 to 13 mph ENE | 11% |
| Tuesday Night | 47°F | Slight Chance Rain Showers | 9 to 13 mph ENE | 16% |
| Wednesday | 63°F | Chance Rain Showers | 12 mph ENE | 37% |
| Wednesday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 6 to 12 mph ENE | 37% |
| Thursday | 67°F | Partly Sunny | 6 to 9 mph ENE | 7% |
| Thursday Night | 49°F | Mostly Cloudy | 2 to 7 mph ENE | 5% |
| Friday | 70°F | Partly Sunny | 2 to 7 mph NE | 3% |
| Friday Night | 48°F | Partly Cloudy | 1 to 6 mph NE | 3% |
| Saturday | 72°F | Sunny | 1 to 5 mph NE | 1% |
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 Sep 20, 2026.