Mankato, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mankato, a city in Jewell County, Kansas.
Tonight
40°F
Mostly Cloudy
Mostly cloudy, with a low around 40. Northwest wind 10 to 20 mph, with gusts as high as 30 mph.
7-day forecast for Mankato
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 40°F | Mostly Cloudy | 10 to 20 mph NW | 2% |
| Wednesday | 53°F | Sunny | 5 to 15 mph WNW | 0% |
| Wednesday Night | 38°F | Mostly Clear | 5 to 10 mph WNW | 3% |
| Thursday | 53°F | Partly Sunny | 5 to 10 mph NW | 9% |
| Thursday Night | 35°F | Mostly Clear | 5 mph N | 0% |
| Friday | 53°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 36°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 61°F | Mostly Sunny | 5 mph W | 3% |
| Saturday Night | 39°F | Mostly Clear | 5 mph WNW | 3% |
| Sunday | 64°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 42°F | Clear | 5 to 10 mph SSW | 0% |
| Monday | 66°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph N | 0% |
| Tuesday | 64°F | Mostly Sunny | 5 mph NE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Mankato (39.787, -98.208). Updated through the day.
Growing snapshot for Mankato
Last spring frost
Apr 30
First fall frost
Oct 14
Growing season
165 days
Hardiness zone
6a
More local growing data for Mankato: nearby ZIP 66956 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mankato, Ks (0.8 mi from Mankato). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.