Ionia, MI Weather & Growing Conditions
Overnight
61°F
Partly Cloudy
Partly cloudy. Low around 61, with temperatures rising to around 63 overnight. South southeast wind around 14 mph, with gusts as high as 26 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Partly Cloudy | 14 mph SSE | 12% |
| Wednesday | 70°F | Rain Showers | 12 to 17 mph S | 88% |
| Wednesday Night | 48°F | Chance Rain Showers | 13 mph SW | 48% |
| Thursday | 56°F | Chance Rain Showers | 12 to 15 mph SW | 50% |
| Thursday Night | 39°F | Rain Showers Likely | 6 to 10 mph W | 55% |
| Friday | 50°F | Rain Showers Likely | 12 mph NNW | 61% |
| Friday Night | 32°F | Rain Showers Likely | 6 to 10 mph NNW | 61% |
| Saturday | 51°F | Mostly Sunny | 8 mph NW | 3% |
| Saturday Night | 30°F | Partly Cloudy | 3 to 7 mph W | 1% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 14 mph W | 15% |
| Sunday Night | 33°F | Slight Chance Rain Showers then Mostly Clear | 5 to 9 mph W | 15% |
| Monday | 59°F | Mostly Sunny | 5 to 12 mph WSW | 1% |
| Monday Night | 38°F | Partly Cloudy | 9 mph WSW | 3% |
| Tuesday | 61°F | Mostly Sunny | 8 to 13 mph W | 4% |
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 Nov 4, 2026.