Mankato, MN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Mankato, a city in Blue Earth County, Minnesota.

This Afternoon

62°F

Showers And Thunderstorms

Showers and thunderstorms. Cloudy, with a high near 62. East southeast wind around 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Mankato

When	Temp	Forecast	Wind	Precip
This Afternoon	62°F	Showers And Thunderstorms	15 mph ESE	77%
Tonight	60°F	Patchy Fog	10 to 15 mph E	93%
Saturday	65°F	Chance Rain Showers then Chance Drizzle	5 to 10 mph NE	50%
Saturday Night	56°F	Slight Chance Drizzle then Mostly Cloudy	10 mph NNE	19%
Sunday	66°F	Partly Sunny	10 to 15 mph NE	4%
Sunday Night	51°F	Mostly Cloudy	10 mph ENE	13%
Monday	62°F	Chance Rain Showers	10 mph ENE	36%
Monday Night	47°F	Chance Rain Showers then Mostly Cloudy	5 mph ENE	36%
Tuesday	63°F	Partly Sunny	5 mph E	6%
Tuesday Night	46°F	Partly Cloudy	0 to 5 mph ESE	0%
Wednesday	66°F	Sunny	5 mph SE	0%
Wednesday Night	50°F	Partly Cloudy	0 to 5 mph SSE	12%
Thursday	69°F	Mostly Sunny	0 to 5 mph SSE	12%
Thursday Night	53°F	Partly Cloudy	0 to 5 mph SSE	6%

Forecast source: National Weather Service (api.weather.gov) for Mankato (44.171, -93.976). Updated through the day.

Growing snapshot for Mankato

Last spring frost

Apr 30

First fall frost

Oct 9

Growing season

161 days

Hardiness zone

More local growing data for Mankato: nearby ZIP 56001 weather · frost dates · planting calendar · Minnesota frost dates

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Climate data from the nearest NOAA station, Mankato, Mn (2.8 mi from Mankato). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.