Cosmos, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cosmos, a city in Meeker County, Minnesota.
This Afternoon
62°F
Slight Chance Drizzle
A slight chance of drizzle before 4pm. Cloudy, with a high near 62. Northeast wind around 10 mph. Chance of precipitation is 20%.
7-day forecast for Cosmos
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 62°F | Slight Chance Drizzle | 10 mph NE | 17% |
| Tonight | 50°F | Mostly Cloudy | 5 to 10 mph NNE | 3% |
| Sunday | 66°F | Partly Sunny | 10 to 15 mph NE | 2% |
| Sunday Night | 47°F | Cloudy | 10 mph ENE | 4% |
| Monday | 60°F | Mostly Cloudy | 5 to 10 mph ENE | 9% |
| Monday Night | 43°F | Mostly Cloudy | 0 to 5 mph ENE | 5% |
| Tuesday | 63°F | Mostly Sunny | 5 to 10 mph E | 2% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Wednesday | 65°F | Sunny | 5 to 10 mph SE | 1% |
| Wednesday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 19% |
| Thursday | 67°F | Chance Rain Showers | 5 to 10 mph SSE | 29% |
| Thursday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph SE | 21% |
| Friday | 71°F | Partly Sunny | 5 to 10 mph SE | 9% |
| Friday Night | 55°F | Mostly Cloudy | 5 mph SE | 13% |
Forecast source: National Weather Service (api.weather.gov) for Cosmos (44.936, -94.695). Updated through the day.
Growing snapshot for Cosmos
Last spring frost
May 6
First fall frost
Oct 2
Growing season
147 days
Hardiness zone
4b
More local growing data for Cosmos: nearby ZIP 56228 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Litchfield, Mn (14.2 mi from Cosmos). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.