Round Lake, MN Weather & Growing Conditions
Today
45°F
Cloudy then Rain Showers
Rain showers after noon. Cloudy, with a high near 45. West northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 45°F | Cloudy then Rain Showers | 15 to 20 mph WNW | 80% |
| Tonight | 37°F | Rain Showers Likely | 15 mph NW | 62% |
| Thursday | 44°F | Mostly Cloudy | 15 mph NNW | 5% |
| Thursday Night | 31°F | Mostly Cloudy | 5 to 10 mph N | 0% |
| Friday | 44°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 28°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Saturday | 49°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Saturday Night | 34°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 54°F | Sunny | 5 to 10 mph WSW | 0% |
| Sunday Night | 37°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Monday | 60°F | Sunny | 10 mph WSW | 0% |
| Monday Night | 37°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Tuesday | 57°F | Mostly Sunny | 5 mph WNW | 0% |
| Tuesday Night | 39°F | Partly Cloudy | 5 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Round Lake, MN
Last spring frost
Apr 30
First fall frost
Oct 10
Growing season
164 days
Hardiness zone
5a
Explore more for Round Lake, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Lake Park, Ia (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.