Otter Lake, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Otter Lake, a community in Lagrange County, Indiana.
Today
72°F
Showers And Thunderstorms
Showers and thunderstorms before 5pm, then a chance of showers and thunderstorms. Cloudy, with a high near 72. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Otter Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Showers And Thunderstorms | 5 to 10 mph SE | 94% |
| Tonight | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph SE | 85% |
| Sunday | 71°F | Showers And Thunderstorms | 5 to 10 mph NW | 82% |
| Sunday Night | 52°F | Chance Rain Showers | 10 mph NE | 42% |
| Monday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Monday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 17% |
| Tuesday | 64°F | Partly Sunny then Slight Chance Rain Showers | 15 mph NE | 16% |
| Tuesday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 41% |
| Wednesday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 44% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph NE | 40% |
| Thursday | 67°F | Mostly Cloudy | 5 to 10 mph NE | 7% |
| Thursday Night | 51°F | Mostly Cloudy | 5 to 10 mph NE | 6% |
| Friday | 70°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Friday Night | 50°F | Partly Cloudy | 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Otter Lake (41.638, -85.172). Updated through the day.
Growing snapshot for Otter Lake
Last spring frost
Apr 30
First fall frost
Oct 16
Growing season
167 days
Hardiness zone
6a
More local growing data for Otter Lake: nearby ZIP 46789 weather · frost dates · planting calendar · Indiana frost dates
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South Milford
Stroh
Topeka
Wildwood
Climate data from the nearest NOAA station, Angola, In (10.8 mi from Otter Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.