Harman US

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

WhenTempForecastWindPrecip
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.