Harman US

Chain-O-Lakes, IN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Chain-O-Lakes, a community in St. Joseph County, Indiana.

Today
74°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 74. Southeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast for Chain-O-Lakes

WhenTempForecastWindPrecip
Today 74°F Showers And Thunderstorms 5 to 10 mph SE 93%
Tonight 63°F Showers And Thunderstorms 5 mph SE 87%
Sunday 72°F Showers And Thunderstorms 5 to 10 mph N 85%
Sunday Night 51°F Chance Rain Showers 10 to 15 mph NE 39%
Monday 66°F Slight Chance Rain Showers 10 to 15 mph NE 20%
Monday Night 47°F Mostly Cloudy 10 to 15 mph NE 14%
Tuesday 65°F Partly Sunny then Slight Chance Rain Showers 10 to 15 mph NE 20%
Tuesday Night 49°F Slight Chance Rain Showers 10 to 15 mph NE 20%
Wednesday 66°F Slight Chance Rain Showers 10 mph NE 17%
Wednesday Night 49°F Mostly Cloudy 5 to 10 mph NE 9%
Thursday 68°F Partly Sunny 5 to 10 mph NE 4%
Thursday Night 50°F Mostly Cloudy 0 to 10 mph NE 4%
Friday 71°F Mostly Sunny 5 to 10 mph NE 2%
Friday Night 49°F Partly Cloudy 0 to 5 mph NE 2%

Forecast source: National Weather Service (api.weather.gov) for Chain-O-Lakes (41.707, -86.388). Updated through the day.

Growing snapshot for Chain-O-Lakes

Last spring frost
May 1
First fall frost
Oct 19
Growing season
170 days
Hardiness zone
6a

More local growing data for Chain-O-Lakes: nearby ZIP 46619 weather · frost dates · planting calendar · Indiana frost dates

Nearby towns & communities

All Indiana locations ›

Climate data from the nearest NOAA station, South Bend Michiana Rgnl Ap, In (3.7 mi from Chain-O-Lakes). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.