Cottonwood, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cottonwood, a city in Lyon County, Minnesota.
Tonight
53°F
Mostly Cloudy
Mostly cloudy, with a low around 53. North northeast wind 5 to 10 mph.
7-day forecast for Cottonwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Mostly Cloudy | 5 to 10 mph NNE | 5% |
| Sunday | 68°F | Mostly Cloudy | 5 to 15 mph NE | 5% |
| Sunday Night | 50°F | Cloudy then Slight Chance Rain Showers | 5 to 10 mph ENE | 20% |
| Monday | 61°F | Slight Chance Rain Showers | 5 to 10 mph ENE | 20% |
| Monday Night | 44°F | Partly Cloudy | 0 to 5 mph ENE | 7% |
| Tuesday | 64°F | Mostly Sunny | 5 to 10 mph E | 2% |
| Tuesday Night | 44°F | Mostly Clear | 5 mph SE | 0% |
| Wednesday | 68°F | Sunny | 5 to 10 mph SE | 4% |
| Wednesday Night | 51°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph SE | 35% |
| Thursday | 70°F | Chance Showers And Thunderstorms | 10 mph SSE | 51% |
| Thursday Night | 55°F | Chance Rain Showers then Mostly Cloudy | 5 mph SE | 31% |
| Friday | 74°F | Partly Sunny | 5 to 10 mph SE | 10% |
| Friday Night | 58°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SE | 17% |
| Saturday | 74°F | Chance Rain Showers | 10 to 15 mph SSE | 32% |
Forecast source: National Weather Service (api.weather.gov) for Cottonwood (44.611, -95.672). Updated through the day.
Growing snapshot for Cottonwood
Last spring frost
May 5
First fall frost
Oct 3
Growing season
150 days
Hardiness zone
5a
More local growing data for Cottonwood: nearby ZIP 56229 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Marshall, Mn (9.2 mi from Cottonwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.