Hillsboro, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hillsboro, a town in Fountain County, Indiana.
This Afternoon
67°F
Mostly Cloudy
Mostly cloudy. High near 67, with temperatures falling to around 60 in the afternoon. West southwest wind around 15 mph, with gusts as high as 22 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Hillsboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Mostly Cloudy | 15 mph WSW | 8% |
| Tonight | 47°F | Mostly Cloudy | 7 to 12 mph WSW | 6% |
| Thursday | 59°F | Mostly Cloudy | 9 to 15 mph WSW | 3% |
| Thursday Night | 41°F | Chance Light Rain | 3 to 8 mph WNW | 36% |
| Friday | 52°F | Mostly Cloudy | 8 to 12 mph NNW | 11% |
| Friday Night | 32°F | Partly Cloudy | 3 to 9 mph NNW | 4% |
| Saturday | 53°F | Sunny | 6 mph NW | 0% |
| Saturday Night | 29°F | Mostly Clear | 0 to 3 mph WNW | 0% |
| Sunday | 58°F | Sunny | 1 to 9 mph W | 0% |
| Sunday Night | 32°F | Mostly Clear | 1 to 5 mph W | 0% |
| Monday | 62°F | Sunny | 0 to 7 mph WSW | 0% |
| Monday Night | 36°F | Clear | 6 mph SW | 0% |
| Tuesday | 64°F | Sunny | 2 to 6 mph W | 1% |
| Tuesday Night | 36°F | Mostly Clear | 3 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Hillsboro (40.109, -87.158). Updated through the day.
Growing snapshot for Hillsboro
Last spring frost
Apr 22
First fall frost
Oct 17
Growing season
176 days
Hardiness zone
6a
More local growing data for Hillsboro: nearby ZIP 47949 weather · frost dates · planting calendar · Indiana frost dates
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Climate data from the nearest NOAA station, Attica 2E, In (15.7 mi from Hillsboro). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.