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Osceola, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Osceola, a city in Clarke County, Iowa.

This Afternoon
85°F
Slight Chance Showers And Thunderstorms
A slight chance of rain showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Partly sunny, with a high near 85. West southwest wind around 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Osceola

WhenTempForecastWindPrecip
This Afternoon 85°F Slight Chance Showers And Thunderstorms 9 mph WSW 19%
Tonight 62°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 8 mph N 74%
Sunday 65°F Chance Showers And Thunderstorms 7 to 12 mph NNE 46%
Sunday Night 57°F Rain Showers Likely 10 mph NE 64%
Monday 59°F Rain Showers 10 mph NE 79%
Monday Night 52°F Showers And Thunderstorms 9 mph NNE 75%
Tuesday 58°F Mostly Cloudy 8 mph NE 13%
Tuesday Night 47°F Mostly Cloudy 3 to 7 mph NE 2%
Wednesday 61°F Mostly Sunny 5 mph ENE 0%
Wednesday Night 51°F Partly Cloudy 3 mph E 8%
Thursday 65°F Slight Chance Rain Showers 5 mph SE 19%
Thursday Night 57°F Slight Chance Rain Showers 3 mph ESE 24%
Friday 68°F Slight Chance Rain Showers 5 mph E 24%
Friday Night 58°F Mostly Cloudy then Slight Chance Rain Showers 3 mph E 15%

Forecast source: National Weather Service (api.weather.gov) for Osceola (41.030, -93.785). Updated through the day.

Growing snapshot for Osceola

Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
5b

More local growing data for Osceola: nearby ZIP 50213 weather · frost dates · planting calendar · Iowa frost dates

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Climate data from the nearest NOAA station, Osceola, Ia (1.2 mi from Osceola). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.