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Boswell, IN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Boswell, a town in Benton County, Indiana.

Tonight
64°F
Partly Cloudy
Partly cloudy, with a low around 64. East wind 5 to 10 mph.

7-day forecast for Boswell

WhenTempForecastWindPrecip
Tonight 64°F Partly Cloudy 5 to 10 mph E 3%
Saturday 83°F Showers And Thunderstorms Likely 5 to 10 mph SE 55%
Saturday Night 69°F Chance Showers And Thunderstorms 5 mph SSW 52%
Sunday 78°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 10 mph N 62%
Sunday Night 58°F Showers And Thunderstorms Likely 10 mph NE 62%
Monday 68°F Showers And Thunderstorms Likely 10 to 15 mph ENE 63%
Monday Night 53°F Chance Showers And Thunderstorms 10 to 15 mph NE 43%
Tuesday 67°F Chance Showers And Thunderstorms 10 mph NE 25%
Tuesday Night 53°F Slight Chance Rain Showers then Mostly Cloudy 5 to 10 mph NNE 16%
Wednesday 68°F Partly Sunny 5 to 10 mph NNE 6%
Wednesday Night 53°F Mostly Cloudy 0 to 10 mph NNE 6%
Thursday 70°F Partly Sunny 5 mph NNE 5%
Thursday Night 54°F Mostly Cloudy 0 to 5 mph NNE 5%
Friday 72°F Mostly Sunny 0 to 5 mph NNE 3%

Forecast source: National Weather Service (api.weather.gov) for Boswell (40.517, -87.375). Updated through the day.

Growing snapshot for Boswell

Last spring frost
Apr 25
First fall frost
Oct 13
Growing season
169 days
Hardiness zone
5b

More local growing data for Boswell: nearby ZIP 47921 weather · frost dates · planting calendar · Indiana frost dates

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Climate data from the nearest NOAA station, Boswell 4Wnw, In (5.7 mi from Boswell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.