Cottonwood, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cottonwood, a city in Lyon County, Minnesota.
Today
46°F
Rain Showers
Rain showers. Cloudy, with a high near 46. Northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Cottonwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 46°F | Rain Showers | 20 mph NW | 92% |
| Tonight | 37°F | Rain Showers then Cloudy | 15 to 20 mph NW | 88% |
| Thursday | 44°F | Mostly Cloudy | 10 to 15 mph NNW | 2% |
| Thursday Night | 30°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 43°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 28°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 53°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 55°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 38°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 61°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 37°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 56°F | Mostly Sunny | 5 mph NW | 1% |
| Tuesday Night | 38°F | Partly Cloudy | 0 to 5 mph SW | 1% |
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 Nov 4, 2026.