Topeka, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Topeka, a town in Lagrange County, Indiana.
Overnight
58°F
Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 4am and 5am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 58. East wind around 10 mph. Chance of precipitation is 20%.
7-day forecast for Topeka
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Slight Chance Showers And Thunderstorms | 10 mph E | 23% |
| Saturday | 74°F | Showers And Thunderstorms | 10 mph SE | 82% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph S | 83% |
| Sunday | 71°F | Showers And Thunderstorms | 5 to 15 mph N | 80% |
| Sunday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 44% |
| Monday | 64°F | Chance Rain Showers | 15 mph NE | 31% |
| Monday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 18% |
| Tuesday | 64°F | Partly Sunny then Slight Chance Rain Showers | 15 mph NE | 18% |
| 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% |
| Friday | 69°F | Mostly Sunny | 5 to 10 mph N | 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
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 Sep 19, 2026.