Otter Lake, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Otter Lake, a community in Lagrange County, Indiana.
This Afternoon
68°F
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a high near 68. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
7-day forecast for Otter Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Scattered Rain Showers | 10 to 15 mph SW | 50% |
| Tonight | 48°F | Mostly Cloudy | 10 mph SW | 10% |
| Thursday | 56°F | Mostly Cloudy | 10 to 15 mph SW | 13% |
| Thursday Night | 41°F | Rain Showers Likely | 5 to 10 mph W | 60% |
| Friday | 50°F | Chance Rain Showers | 10 mph NW | 29% |
| Friday Night | 35°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 29% |
| Saturday | 51°F | Mostly Sunny | 5 to 10 mph NW | 1% |
| Saturday Night | 32°F | Partly Cloudy | 5 mph W | 0% |
| Sunday | 55°F | Sunny | 5 to 15 mph W | 2% |
| Sunday Night | 34°F | Mostly Clear | 5 to 10 mph W | 2% |
| Monday | 58°F | Sunny | 5 to 10 mph W | 1% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Tuesday | 60°F | Sunny | 5 to 10 mph W | 0% |
| Tuesday Night | 37°F | Partly Cloudy | 0 to 5 mph NW | 2% |
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
Nearby towns & communities
Adams Lake
Cree Lake
Howe
Lagrange
Mongo
Ontario
Scott
Shipshewana
Shipshewana Lake
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 Nov 4, 2026.