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 between 3pm and 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Partly sunny. High near 85, with temperatures falling to around 81 in the afternoon. West southwest wind 7 to 10 mph, with gusts as high as 18 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 | 7 to 10 mph WSW | 19% |
| Tonight | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 8 mph N | 74% |
| Sunday | 66°F | Chance Showers And Thunderstorms | 7 to 12 mph NNE | 46% |
| Sunday Night | 58°F | Rain Showers Likely | 10 mph NE | 64% |
| Monday | 60°F | Rain Showers Likely | 12 mph NE | 64% |
| Monday Night | 52°F | Chance Rain Showers | 9 mph NE | 53% |
| Tuesday | 59°F | Mostly Cloudy | 9 mph NE | 13% |
| Tuesday Night | 46°F | Partly Cloudy | 3 to 7 mph NE | 3% |
| Wednesday | 63°F | Sunny | 5 mph ENE | 2% |
| Wednesday Night | 51°F | Partly Cloudy | 3 mph E | 6% |
| Thursday | 65°F | Slight Chance Rain Showers | 5 mph ESE | 21% |
| Thursday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph ESE | 16% |
| Friday | 67°F | Slight Chance Rain Showers then Partly Sunny | 2 to 6 mph ESE | 16% |
| Friday Night | 56°F | Mostly Cloudy | 5 mph ESE | 10% |
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.