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Fish Lake, IN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Fish Lake, a community in Laporte County, Indiana.

Tonight
57°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 4am. Mostly cloudy. Low around 57, with temperatures rising to around 63 overnight. East wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Fish Lake

WhenTempForecastWindPrecip
Tonight 57°F Mostly Cloudy then Chance Showers And Thunderstorms 5 to 10 mph E 25%
Saturday 76°F Chance Showers And Thunderstorms then Showers And Thunderstorms 5 to 10 mph SE 84%
Saturday Night 63°F Chance Showers And Thunderstorms then Showers And Thunderstorms 5 mph S 86%
Sunday 72°F Rain Showers 5 to 10 mph N 81%
Sunday Night 51°F Rain Showers Likely 10 to 15 mph NE 62%
Monday 66°F Chance Showers And Thunderstorms 10 to 15 mph NE 51%
Monday Night 48°F Chance Rain Showers then Mostly Cloudy 10 to 15 mph NE 30%
Tuesday 65°F Mostly Cloudy then Slight Chance Rain Showers 10 to 15 mph NE 21%
Tuesday Night 49°F Slight Chance Rain Showers 5 to 10 mph NE 21%
Wednesday 67°F Partly Sunny 5 to 10 mph NE 13%
Wednesday Night 50°F Mostly Cloudy 5 to 10 mph NE 9%
Thursday 69°F Partly Sunny 5 to 10 mph N 5%
Thursday Night 50°F Mostly Cloudy 0 to 10 mph N 4%
Friday 71°F Mostly Sunny 0 to 5 mph N 6%

Forecast source: National Weather Service (api.weather.gov) for Fish Lake (41.558, -86.546). Updated through the day.

Growing snapshot for Fish Lake

Last spring frost
Apr 19
First fall frost
Oct 27
Growing season
191 days
Hardiness zone
6a

More local growing data for Fish Lake: nearby ZIP 46365 weather · frost dates · planting calendar · Indiana frost dates

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Climate data from the nearest NOAA station, Laporte, In (9.6 mi from Fish Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.