Princeton, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Princeton, a city in Gibson County, Indiana.
Today
86°F
Sunny
Sunny. High near 86, with temperatures falling to around 84 in the afternoon. East northeast wind around 3 mph.
7-day forecast for Princeton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 3 mph ENE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph ENE | 0% |
| Wednesday | 88°F | Sunny | 2 mph W | 0% |
| Wednesday Night | 68°F | Mostly Clear | 2 mph S | 3% |
| Thursday | 88°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph SSW | 15% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 5 mph S | 53% |
| Friday | 87°F | Chance Showers And Thunderstorms | 2 to 7 mph SSW | 53% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 3 mph SSW | 36% |
| Saturday | 87°F | Chance Showers And Thunderstorms | 2 to 6 mph SSW | 36% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 26% |
| Sunday | 89°F | Mostly Sunny | 3 to 8 mph SSW | 11% |
| Sunday Night | 72°F | Mostly Clear | 6 mph SSW | 11% |
| Monday | 91°F | Sunny | 5 to 9 mph SSW | 9% |
| Monday Night | 74°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 6 mph SSW | 16% |
Forecast source: National Weather Service (api.weather.gov) for Princeton (38.354, -87.580). Updated through the day.
Growing snapshot for Princeton
Last spring frost
Apr 13
First fall frost
Oct 25
Growing season
194 days
Hardiness zone
6b
More local growing data for Princeton: nearby ZIP 47670 weather · frost dates · planting calendar · Indiana frost dates
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Oakland City
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Patoka
Somerville
Climate data from the nearest NOAA station, Princeton 1 W, In (1 mi from Princeton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.