Linn Grove, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Linn Grove, a community in Adams County, Indiana.
Today
78°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 4pm, then a chance of showers and thunderstorms. Cloudy, with a high near 78. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Linn Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Showers And Thunderstorms Likely | 5 mph SE | 70% |
| Tonight | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 56% |
| Sunday | 77°F | Showers And Thunderstorms Likely | 5 to 10 mph NW | 60% |
| Sunday Night | 55°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 59% |
| Monday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 51% |
| Monday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
| Tuesday | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 18% |
| Tuesday Night | 52°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 41% |
| Wednesday | 66°F | Chance Rain Showers | 10 mph NE | 41% |
| Wednesday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 27% |
| Thursday | 68°F | Mostly Cloudy | 5 to 10 mph NE | 9% |
| Thursday Night | 52°F | Mostly Cloudy | 5 to 10 mph NE | 7% |
| Friday | 70°F | Mostly Sunny | 5 to 10 mph NE | 6% |
| Friday Night | 50°F | Partly Cloudy | 5 to 10 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Linn Grove (40.645, -85.035). Updated through the day.
Growing snapshot for Linn Grove
Last spring frost
Apr 23
First fall frost
Oct 22
Growing season
181 days
Hardiness zone
6a
More local growing data for Linn Grove: nearby ZIP 46740 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Berne Wwtp, In (4.8 mi from Linn Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.