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.
Tonight
63°F
Showers And Thunderstorms
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 10pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 63. South wind 0 to 5 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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Showers And Thunderstorms | 0 to 5 mph S | 88% |
| Sunday | 71°F | Showers And Thunderstorms | 5 to 10 mph NE | 87% |
| Sunday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 38% |
| Monday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 30% |
| Monday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 26% |
| Tuesday | 64°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 17% |
| Tuesday Night | 49°F | Slight Chance Rain Showers | 10 to 15 mph NE | 17% |
| Wednesday | 65°F | Slight Chance Rain Showers | 10 mph NE | 20% |
| Wednesday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 20% |
| Thursday | 68°F | Partly Sunny | 5 to 10 mph NE | 4% |
| Thursday Night | 51°F | Mostly Cloudy | 0 to 10 mph NE | 6% |
| Friday | 72°F | Partly Sunny | 0 to 5 mph NE | 6% |
| Friday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Saturday | 73°F | Mostly Sunny | 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
Ardmore
Gilmer Park
Granger
Indian Village
Lakeville
Mishawaka
New Carlisle
North Liberty
Notre Dame
Osceola
Roseland
South Bend
Wyatt
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 20, 2026.