Hamilton, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hamilton, a town in Steuben County, Indiana.
This Afternoon
68°F
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a high near 68. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Hamilton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Scattered Rain Showers | 10 to 15 mph S | 50% |
| Tonight | 48°F | Isolated Rain Showers then Mostly Cloudy | 5 to 10 mph SW | 18% |
| Thursday | 57°F | Mostly Cloudy | 10 to 15 mph SW | 13% |
| Thursday Night | 41°F | Rain Showers Likely | 5 to 10 mph W | 60% |
| Friday | 51°F | Chance Rain Showers | 5 to 15 mph NW | 26% |
| Friday Night | 34°F | Chance Rain Showers then Partly Cloudy | 5 to 10 mph NW | 26% |
| Saturday | 51°F | Mostly Sunny | 5 to 10 mph NW | 1% |
| Saturday Night | 31°F | Partly Cloudy | 5 mph W | 0% |
| Sunday | 55°F | Sunny | 5 to 15 mph W | 1% |
| Sunday Night | 34°F | Mostly Clear | 5 to 10 mph W | 1% |
| Monday | 59°F | Sunny | 5 to 10 mph W | 1% |
| 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 | Partly Cloudy | 0 to 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Hamilton (41.540, -84.920). Updated through the day.
Growing snapshot for Hamilton
Last spring frost
Apr 30
First fall frost
Oct 16
Growing season
167 days
Hardiness zone
6a
More local growing data for Hamilton: nearby ZIP 46742 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Angola, In (10.7 mi from Hamilton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.