Osceola, WI Weather & Growing Conditions
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. West northwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 10 mph WNW | 2% |
| Tonight | 54°F | Partly Cloudy | 0 to 5 mph W | 3% |
| Wednesday | 77°F | Sunny | 0 to 5 mph WSW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 82°F | Sunny | 5 to 15 mph SSW | 2% |
| Thursday Night | 62°F | Mostly Clear | 10 to 15 mph SSW | 3% |
| Friday | 85°F | Sunny | 5 to 15 mph SSW | 10% |
| Friday Night | 62°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 38% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 0 to 5 mph SSW | 15% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 5 mph NNE | 51% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 5 mph SW | 51% |
| Sunday Night | 62°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 17% |
| Monday | 81°F | Slight Chance Showers And Thunderstorms | 5 mph NE | 23% |
| Monday Night | 62°F | Slight Chance Showers And Thunderstorms | 5 mph NNE | 23% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Osceola, WI
Last spring frost
May 4
First fall frost
Oct 8
Growing season
156 days
Hardiness zone
4b
Explore more for Osceola, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, St Croix Falls, Wi (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.