Winona Lake, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winona Lake, a town in Kosciusko County, Indiana.
This Afternoon
74°F
Mostly Sunny
Mostly sunny, with a high near 74. East wind around 5 mph.
7-day forecast for Winona Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 5 mph E | 3% |
| Tonight | 57°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph E | 29% |
| Saturday | 77°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph SE | 75% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 5 mph S | 77% |
| Sunday | 75°F | Showers And Thunderstorms | 0 to 10 mph NW | 76% |
| Sunday Night | 54°F | Showers And Thunderstorms Likely | 10 mph NE | 59% |
| Monday | 66°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 53% |
| Monday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Tuesday | 66°F | Slight Chance Rain Showers | 10 to 15 mph NE | 20% |
| Tuesday Night | 51°F | Slight Chance Rain Showers | 5 to 10 mph NE | 20% |
| Wednesday | 66°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 15% |
| Wednesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NE | 12% |
| Thursday | 69°F | Partly Sunny | 5 mph N | 6% |
| Thursday Night | 52°F | Mostly Cloudy | 0 to 5 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Winona Lake (41.217, -85.813). Updated through the day.
Growing snapshot for Winona Lake
Last spring frost
Apr 28
First fall frost
Oct 18
Growing season
170 days
Hardiness zone
6a
More local growing data for Winona Lake: nearby ZIP 46590 weather · frost dates · planting calendar · Indiana frost dates
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Climate data from the nearest NOAA station, Warsaw, In (4.5 mi from Winona Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.