Mountain Lake, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mountain Lake, a city in Cottonwood County, Minnesota.
Tonight
41°F
Rain Showers
Rain showers. Cloudy. Low around 41, with temperatures rising to around 44 overnight. Northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Mountain Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 41°F | Rain Showers | 15 to 25 mph NW | 96% |
| Wednesday | 46°F | Rain Showers | 15 to 20 mph NW | 92% |
| Wednesday Night | 38°F | Rain Showers Likely | 15 mph NW | 66% |
| Thursday | 44°F | Chance Rain Showers | 10 to 15 mph NNW | 39% |
| Thursday Night | 32°F | Mostly Cloudy | 5 to 10 mph N | 2% |
| Friday | 44°F | Partly Sunny | 0 to 5 mph NE | 1% |
| Friday Night | 30°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 53°F | Mostly Sunny | 5 to 10 mph SW | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 6% |
| Sunday Night | 38°F | Mostly Clear | 5 to 10 mph SW | 1% |
| Monday | 59°F | Sunny | 10 to 15 mph W | 0% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph WNW | 0% |
| Tuesday | 54°F | Mostly Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Mountain Lake (43.940, -94.928). Updated through the day.
Growing snapshot for Mountain Lake
Last spring frost
Apr 30
First fall frost
Oct 10
Growing season
162 days
Hardiness zone
5a
More local growing data for Mountain Lake: nearby ZIP 56159 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Windom, Mn (10 mi from Mountain Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.