Chesterton, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chesterton, a town in Porter County, Indiana.
This Afternoon
73°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a high near 73. East northeast wind around 10 mph. Chance of precipitation is 30%.
7-day forecast for Chesterton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Chance Rain Showers | 10 mph ENE | 30% |
| Tonight | 60°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph E | 36% |
| Saturday | 77°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 83% |
| Saturday Night | 65°F | Showers And Thunderstorms Likely | 5 mph SSE | 83% |
| Sunday | 70°F | Showers And Thunderstorms | 5 to 15 mph NNE | 83% |
| Sunday Night | 54°F | Rain Showers Likely | 10 to 15 mph NE | 63% |
| Monday | 66°F | Showers And Thunderstorms Likely | 10 to 15 mph ENE | 55% |
| Monday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph ENE | 33% |
| Tuesday | 65°F | Slight Chance Rain Showers | 10 mph NE | 17% |
| Tuesday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 17% |
| Wednesday | 66°F | Slight Chance Rain Showers | 5 to 10 mph NNE | 15% |
| Wednesday Night | 52°F | Mostly Cloudy | 5 mph NNE | 6% |
| Thursday | 68°F | Partly Sunny | 5 to 10 mph NNE | 5% |
| Thursday Night | 53°F | Mostly Cloudy | 0 to 5 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Chesterton (41.600, -87.055). Updated through the day.
Growing snapshot for Chesterton
Last spring frost
Apr 22
First fall frost
Oct 27
Growing season
188 days
Hardiness zone
6a
More local growing data for Chesterton: nearby ZIP 46304 weather · frost dates · planting calendar · Indiana frost dates
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Climate data from the nearest NOAA station, Indiana Dunes Nl, In (2.3 mi from Chesterton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.