Mankato, MN Weather & Growing Conditions
This Afternoon
57°F
Light Rain
Rain and patchy fog. Cloudy. High near 57, with temperatures falling to around 53 in the afternoon. North northwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Light Rain | 10 mph NNW | 82% |
| Tonight | 45°F | Rain | 10 mph NNW | 99% |
| Wednesday | 51°F | Light Rain | 10 to 15 mph WNW | 98% |
| Wednesday Night | 41°F | Light Rain | 10 to 15 mph NW | 99% |
| Thursday | 48°F | Chance Light Rain | 10 to 15 mph NNW | 51% |
| Thursday Night | 34°F | Mostly Cloudy | 5 to 10 mph N | 6% |
| Friday | 47°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 30°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Saturday | 54°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph WSW | 4% |
| Sunday | 58°F | Sunny | 5 to 10 mph W | 4% |
| Sunday Night | 36°F | Mostly Clear | 5 to 10 mph SSW | 0% |
| Monday | 60°F | Mostly Sunny | 10 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mankato, MN
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
161 days
Hardiness zone
5a
Explore more for Mankato, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Mankato, Mn (2.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.