Harman US

Ionia, MO Weather & Growing Conditions

Overnight
74°F
Mostly Clear
Mostly clear, with a low around 74. South wind 3 to 7 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 74°F Mostly Clear 3 to 7 mph S 1%
Saturday 95°F Sunny 7 to 14 mph SSW 0%
Saturday Night 70°F Partly Cloudy then Slight Chance Showers And Thunderstorms 3 to 8 mph SW 34%
Sunday 86°F Chance Showers And Thunderstorms 6 mph W 39%
Sunday Night 64°F Showers And Thunderstorms Likely 6 mph NNE 73%
Monday 74°F Showers And Thunderstorms Likely 5 to 9 mph NNE 73%
Monday Night 57°F Slight Chance Showers And Thunderstorms then Mostly Cloudy 6 to 9 mph NNE 17%
Tuesday 69°F Partly Sunny 9 mph NNE 8%
Tuesday Night 51°F Mostly Cloudy 3 to 8 mph NNE 3%
Wednesday 72°F Mostly Sunny 6 mph NE 1%
Wednesday Night 53°F Partly Cloudy 5 mph NE 2%
Thursday 74°F Mostly Sunny 5 mph ENE 5%
Thursday Night 56°F Mostly Cloudy 3 mph ENE 6%
Friday 74°F Mostly Sunny 6 mph E 9%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Ionia, MO

Last spring frost
Apr 13
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
6b

Explore more for Ionia, MO: full frost dates · planting calendar · Missouri frost dates

Climate data from the nearest NOAA station, Cole Camp 3Nw, Mo (4.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.