Osceola, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Osceola, a town in St. Joseph County, Indiana.
This Afternoon
74°F
Mostly Sunny
Mostly sunny, with a high near 74. East wind around 10 mph.
7-day forecast for Osceola
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 10 mph E | 6% |
| Tonight | 57°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph E | 50% |
| Saturday | 75°F | Showers And Thunderstorms | 5 to 10 mph SE | 85% |
| Saturday Night | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph S | 86% |
| Sunday | 72°F | Showers And Thunderstorms | 5 to 10 mph N | 81% |
| Sunday Night | 51°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 58% |
| Monday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 47% |
| Monday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 26% |
| Tuesday | 65°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 23% |
| Tuesday Night | 49°F | Slight Chance Rain Showers | 5 to 15 mph NE | 23% |
| Wednesday | 66°F | Slight Chance Rain Showers then Partly Sunny | 10 mph NE | 17% |
| Wednesday Night | 50°F | Mostly Cloudy | 5 to 10 mph NE | 11% |
| Thursday | 69°F | Partly Sunny | 5 to 10 mph N | 5% |
| Thursday Night | 50°F | Mostly Cloudy | 0 to 10 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Osceola (41.666, -86.079). Updated through the day.
Growing snapshot for Osceola
Last spring frost
Apr 23
First fall frost
Oct 23
Growing season
181 days
Hardiness zone
6a
More local growing data for Osceola: nearby ZIP 46561 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Ardmore
Chain-O-Lakes
Gilmer Park
Granger
Indian Village
Lakeville
Mishawaka
New Carlisle
North Liberty
Notre Dame
Roseland
South Bend
Wyatt
Climate data from the nearest NOAA station, S Bend, In (9.5 mi from Osceola). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.