Blue Earth, MN Weather & Growing Conditions
Overnight
44°F
Light Rain
Rain and patchy fog. Cloudy, with a low around 44. Northwest wind 15 to 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Light Rain | 15 to 20 mph NW | 90% |
| Wednesday | 48°F | Drizzle | 15 mph WNW | 75% |
| Wednesday Night | 39°F | Drizzle | 15 mph WNW | 86% |
| Thursday | 47°F | Chance Drizzle then Cloudy | 15 mph NNW | 32% |
| Thursday Night | 32°F | Mostly Cloudy | 5 to 10 mph N | 2% |
| Friday | 46°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Friday Night | 27°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 49°F | Mostly Sunny | 0 to 10 mph SW | 1% |
| Saturday Night | 33°F | Mostly Clear | 5 mph W | 1% |
| Sunday | 55°F | Sunny | 5 mph W | 1% |
| Sunday Night | 35°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 61°F | Sunny | 10 mph WSW | 0% |
| Monday Night | 37°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 57°F | Mostly Sunny | 5 mph NW | 0% |
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 Nov 4, 2026.