Boswell, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Boswell, a town in Benton County, Indiana.
Today
82°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 82. South wind 0 to 5 mph.
7-day forecast for Boswell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Patchy Fog then Sunny | 0 to 5 mph S | 0% |
| Tonight | 62°F | Partly Cloudy | 0 mph | 0% |
| Wednesday | 83°F | Mostly Sunny | 0 to 5 mph SSW | 4% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 62% |
| Thursday | 80°F | Showers And Thunderstorms | 0 to 5 mph S | 75% |
| Thursday Night | 64°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 55% |
| Friday | 81°F | Slight Chance Showers And Thunderstorms | 0 mph | 23% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 0 mph | 23% |
| Saturday | 82°F | Mostly Sunny | 0 to 5 mph SSW | 14% |
| Saturday Night | 68°F | Mostly Clear | 0 to 5 mph SSW | 10% |
| Sunday | 85°F | Mostly Sunny | 5 to 10 mph SW | 9% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 17% |
| Monday | 85°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 22% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 mph SW | 35% |
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
Nearby towns & communities
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 Aug 4, 2026.