Topeka, IN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Topeka, a town in Lagrange County, Indiana.

This Afternoon

74°F

Mostly Sunny

Mostly sunny, with a high near 74. East wind around 10 mph.

7-day forecast for Topeka

When	Temp	Forecast	Wind	Precip
This Afternoon	74°F	Mostly Sunny	10 mph E	2%
Tonight	58°F	Partly Cloudy then Slight Chance Showers And Thunderstorms	5 to 10 mph E	24%
Saturday	74°F	Showers And Thunderstorms	10 mph SE	90%
Saturday Night	63°F	Chance Showers And Thunderstorms then Showers And Thunderstorms	5 to 10 mph S	84%
Sunday	71°F	Showers And Thunderstorms	5 to 15 mph N	80%
Sunday Night	53°F	Chance Showers And Thunderstorms	10 to 15 mph NE	51%
Monday	65°F	Chance Showers And Thunderstorms	15 mph NE	49%
Monday Night	50°F	Chance Rain Showers	10 to 15 mph NE	29%
Tuesday	64°F	Partly Sunny then Slight Chance Rain Showers	15 mph NE	20%
Tuesday Night	52°F	Slight Chance Rain Showers	10 to 15 mph NE	20%
Wednesday	64°F	Slight Chance Rain Showers	10 mph NE	18%
Wednesday Night	52°F	Slight Chance Rain Showers then Mostly Cloudy	5 to 10 mph NE	15%
Thursday	68°F	Partly Sunny	5 to 10 mph N	7%
Thursday Night	52°F	Partly Cloudy	5 to 10 mph NE	6%

Forecast source: National Weather Service (api.weather.gov) for Topeka (41.539, -85.547). Updated through the day.

Growing snapshot for Topeka

Last spring frost

Apr 26

First fall frost

Oct 21

Growing season

176 days

Hardiness zone

More local growing data for Topeka: nearby ZIP 46571 weather · frost dates · planting calendar · Indiana frost dates

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Adams Lake Cree Lake Howe Lagrange Mongo Ontario Otter Lake Scott Shipshewana Shipshewana Lake South Milford Stroh Wildwood

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Climate data from the nearest NOAA station, Lagrange, In (9 mi from Topeka). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.