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
48°F
Light Rain
Rain. Cloudy, with a high near 48. West wind 10 to 15 mph. Chance of precipitation is 90%.
7-day forecast for Mankato
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Light Rain | 10 to 15 mph W | 88% |
| Tonight | 41°F | Light Rain | 10 to 15 mph NW | 93% |
| Thursday | 46°F | Cloudy | 10 to 15 mph NNW | 12% |
| Thursday Night | 31°F | Mostly Cloudy | 5 to 10 mph N | 0% |
| Friday | 45°F | Patchy Fog then Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 27°F | Partly Cloudy | 0 to 5 mph SSW | 0% |
| Saturday | 50°F | Mostly Sunny | 5 mph SSW | 0% |
| Saturday Night | 34°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 55°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 37°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 56°F | Mostly Sunny | 5 mph NW | 0% |
| Tuesday Night | 37°F | Partly Cloudy | 0 to 5 mph WNW | 0% |
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
5a
More local growing data for Mankato: nearby ZIP 56001 weather · frost dates · planting calendar · Minnesota frost dates
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Vernon Center
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 Nov 4, 2026.