Blue Earth, MN Weather & Growing Conditions
Overnight
60°F
Chance Light Rain
A chance of rain before 4am, then patchy fog and a slight chance of rain. Cloudy. Low around 60, with temperatures rising to around 64 overnight. East northeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Chance Light Rain | 5 mph ENE | 32% |
| Saturday | 65°F | Patchy Fog | 5 to 10 mph NNE | 33% |
| Saturday Night | 57°F | Cloudy | 10 mph NNE | 12% |
| Sunday | 67°F | Mostly Cloudy | 10 to 15 mph NE | 7% |
| Sunday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 10 mph ENE | 22% |
| Monday | 61°F | Chance Rain Showers | 10 mph ENE | 27% |
| Monday Night | 45°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph ENE | 27% |
| Tuesday | 63°F | Mostly Sunny | 5 to 10 mph E | 5% |
| Tuesday Night | 43°F | Mostly Clear | 0 to 5 mph ESE | 1% |
| Wednesday | 65°F | Sunny | 5 mph SE | 2% |
| Wednesday Night | 48°F | Partly Cloudy | 5 mph SE | 10% |
| Thursday | 67°F | Slight Chance Rain Showers | 5 mph SE | 15% |
| Thursday Night | 51°F | Partly Cloudy | 0 to 5 mph SE | 8% |
| Friday | 70°F | Mostly Sunny | 0 to 10 mph SE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Blue Earth, MN
Last spring frost
Apr 27
First fall frost
Oct 10
Growing season
166 days
Hardiness zone
5a
Explore more for Blue Earth, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Winnebago, Mn (10.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.