Ossian, IN Weather & Growing Conditions
This Afternoon
68°F
Isolated Rain Showers
Isolated rain showers. Mostly cloudy, with a high near 68. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Isolated Rain Showers | 10 mph SW | 16% |
| Tonight | 48°F | Mostly Cloudy | 10 mph SW | 10% |
| Thursday | 58°F | Mostly Cloudy | 10 to 15 mph SW | 9% |
| Thursday Night | 43°F | Chance Rain Showers | 5 to 10 mph W | 49% |
| Friday | 51°F | Chance Rain Showers | 5 to 10 mph NW | 35% |
| Friday Night | 35°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 16% |
| Saturday | 51°F | Partly Sunny | 5 to 10 mph NW | 2% |
| Saturday Night | 31°F | Partly Cloudy | 0 to 5 mph W | 0% |
| Sunday | 55°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 34°F | Mostly Clear | 5 mph W | 1% |
| Monday | 59°F | Sunny | 5 to 10 mph W | 0% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Tuesday | 61°F | Sunny | 5 to 10 mph W | 0% |
| Tuesday Night | 36°F | Mostly Clear | 0 to 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ossian, IN
Last spring frost
Apr 24
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
6a
Explore more for Ossian, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Bluffton 6N, In (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.