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
84°F
Sunny
Sunny, with a high near 84. South wind 0 to 5 mph.
7-day forecast for Otter Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 0 to 5 mph S | 0% |
| Tonight | 60°F | Mostly Clear | 0 to 5 mph S | 0% |
| Wednesday | 85°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 65°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 63% |
| Thursday | 82°F | Rain Showers Likely | 5 mph SW | 71% |
| Thursday Night | 64°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SW | 71% |
| Friday | 83°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 33% |
| Friday Night | 63°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 33% |
| Saturday | 85°F | Mostly Sunny | 0 to 10 mph SW | 12% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 22% |
| Sunday | 87°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 22% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 10 to 15 mph SW | 39% |
| Monday | 87°F | Chance Rain Showers | 10 mph SW | 39% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 48% |
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 Aug 4, 2026.