Mountain Lake, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mountain Lake, a city in Cottonwood County, Minnesota.
Overnight
60°F
Showers And Thunderstorms
Showers and thunderstorms before 4am, then rain showers likely and patchy smoke. Mostly cloudy, with a low around 60. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Mountain Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Showers And Thunderstorms | 15 mph NW | 83% |
| Tuesday | 69°F | Patchy Smoke then Slight Chance Rain Showers | 5 to 15 mph NW | 22% |
| Tuesday Night | 53°F | Partly Cloudy | 0 to 5 mph WNW | 5% |
| Wednesday | 73°F | Sunny | 0 to 5 mph SSW | 0% |
| Wednesday Night | 55°F | Mostly Clear | 0 to 10 mph S | 0% |
| Thursday | 79°F | Sunny | 10 to 15 mph SSW | 0% |
| Thursday Night | 62°F | Mostly Clear | 10 to 15 mph S | 2% |
| Friday | 82°F | Sunny | 10 mph SSW | 10% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 18% |
| Saturday | 83°F | Sunny | 5 to 10 mph SSW | 13% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 36% |
| Sunday | 81°F | Chance Showers And Thunderstorms then Mostly Sunny | 10 mph ESE | 34% |
| Sunday Night | 64°F | Partly Cloudy then Chance Rain Showers | 5 to 10 mph E | 31% |
| Monday | 80°F | Chance Rain Showers then Partly Sunny | 10 mph E | 31% |
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 Aug 4, 2026.