Foster, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Foster, a community in Fountain County, Indiana.
Tonight
66°F
Partly Cloudy then Scattered Rain Showers
Scattered rain showers after 4am. Partly cloudy, with a low around 66. East southeast wind 3 to 7 mph.
7-day forecast for Foster
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Partly Cloudy then Scattered Rain Showers | 3 to 7 mph ESE | 12% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 8 mph SSE | 47% |
| Saturday Night | 68°F | Scattered Showers And Thunderstorms then Isolated Showers And Thunderstorms | 3 to 7 mph SSE | 36% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 2 to 8 mph NNE | 50% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 64% |
| Monday | 71°F | Showers And Thunderstorms Likely | 14 mph NE | 65% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 48% |
| Tuesday | 69°F | Chance Showers And Thunderstorms | 14 mph NE | 33% |
| Tuesday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 12 mph NNE | 19% |
| Wednesday | 70°F | Mostly Cloudy | 6 to 9 mph NNE | 4% |
| Wednesday Night | 54°F | Mostly Cloudy | 3 to 9 mph NNE | 4% |
| Thursday | 72°F | Partly Sunny | 3 to 8 mph NNE | 3% |
| Thursday Night | 55°F | Mostly Cloudy | 2 to 8 mph NNE | 3% |
| Friday | 74°F | Mostly Sunny | 3 to 8 mph NNE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Foster (40.142, -87.469). Updated through the day.
Growing snapshot for Foster
Last spring frost
Apr 23
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
6a
More local growing data for Foster: nearby ZIP 47932 weather · frost dates · planting calendar · Indiana frost dates
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Climate data from the nearest NOAA station, Perrysville 4 Wnw, In (6.4 mi from Foster). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.