Hillsboro, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hillsboro, a town in Fountain County, Indiana.
Today
83°F
Sunny
Sunny, with a high near 83. South wind around 2 mph.
7-day forecast for Hillsboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 2 mph S | 0% |
| Tonight | 61°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 83°F | Sunny | 3 mph SSW | 0% |
| Wednesday Night | 65°F | Partly Cloudy then Scattered Showers And Thunderstorms | 2 mph S | 31% |
| Thursday | 81°F | Chance Showers And Thunderstorms | 2 to 6 mph S | 70% |
| Thursday Night | 65°F | Chance Showers And Thunderstorms then Scattered Showers And Thunderstorms | 1 to 5 mph SSW | 70% |
| Friday | 82°F | Scattered Showers And Thunderstorms | 3 mph SW | 26% |
| Friday Night | 65°F | Scattered Showers And Thunderstorms | 3 mph S | 26% |
| Saturday | 83°F | Slight Chance Rain Showers then Mostly Sunny | 2 to 6 mph SSW | 16% |
| Saturday Night | 68°F | Mostly Clear | 6 mph SSW | 14% |
| Sunday | 85°F | Sunny | 6 to 12 mph SSW | 10% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph SSW | 19% |
| Monday | 86°F | Slight Chance Showers And Thunderstorms | 10 mph SSW | 19% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 9 mph SW | 32% |
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 Aug 4, 2026.