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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
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.