Ionia, MI Weather & Growing Conditions
Overnight
51°F
Rain Showers
Rain showers. Cloudy. Low around 51, with temperatures rising to around 54 overnight. East wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Rain Showers | 7 mph E | 92% |
| Saturday | 65°F | Showers And Thunderstorms | 9 mph E | 96% |
| Saturday Night | 56°F | Patchy Fog | 5 to 8 mph ENE | 78% |
| Sunday | 69°F | Chance Rain Showers | 8 to 14 mph NE | 36% |
| Sunday Night | 48°F | Partly Cloudy | 13 mph NE | 1% |
| Monday | 63°F | Mostly Cloudy | 12 to 15 mph ENE | 3% |
| Monday Night | 45°F | Mostly Cloudy | 10 to 15 mph NE | 2% |
| Tuesday | 63°F | Partly Sunny | 13 to 16 mph NE | 4% |
| Tuesday Night | 46°F | Mostly Cloudy then Chance Rain Showers | 15 mph NE | 26% |
| Wednesday | 63°F | Chance Rain Showers | 16 mph ENE | 42% |
| Wednesday Night | 47°F | Chance Rain Showers then Mostly Cloudy | 8 to 14 mph NE | 42% |
| Thursday | 66°F | Partly Sunny | 10 mph NE | 6% |
| Thursday Night | 48°F | Mostly Cloudy | 5 to 9 mph NE | 6% |
| Friday | 71°F | Mostly Sunny | 6 to 9 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ionia, MI
Last spring frost
May 3
First fall frost
Oct 12
Growing season
161 days
Hardiness zone
6a
Explore more for Ionia, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Ionia 2Ssw, Mi (2.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.