Topeka, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Topeka, a town in Lagrange County, Indiana.
This Afternoon
84°F
Sunny
Sunny, with a high near 84. South wind around 5 mph.
7-day forecast for Topeka
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Sunny | 5 mph S | 0% |
| Tonight | 61°F | Mostly Clear | 5 mph S | 0% |
| Wednesday | 85°F | Mostly Sunny | 5 to 10 mph SW | 5% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 76% |
| Thursday | 80°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 61% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 46% |
| Friday | 82°F | Chance Showers And Thunderstorms | 0 to 10 mph SW | 29% |
| Friday Night | 65°F | Chance Showers And Thunderstorms | 5 mph SW | 29% |
| Saturday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 16% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 0 to 10 mph W | 31% |
| Sunday | 84°F | Chance Rain Showers | 5 to 10 mph SW | 34% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 47% |
| Monday | 85°F | Chance Showers And Thunderstorms | 5 to 15 mph SW | 44% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 15 mph SW | 64% |
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
6a
More local growing data for Topeka: nearby ZIP 46571 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Adams Lake
Cree Lake
Howe
Lagrange
Mongo
Ontario
Otter Lake
Scott
Shipshewana
Shipshewana Lake
South Milford
Stroh
Wildwood
Climate data from the nearest NOAA station, Lagrange, In (9 mi from Topeka). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.