Cosmos, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cosmos, a city in Meeker County, Minnesota.
Overnight
59°F
Mostly Cloudy
Mostly cloudy, with a low around 59. Northwest wind around 10 mph.
7-day forecast for Cosmos
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Mostly Cloudy | 10 mph NW | 10% |
| Tuesday | 70°F | Patchy Smoke | 10 to 15 mph NW | 5% |
| Tuesday Night | 53°F | Partly Cloudy | 0 to 10 mph W | 1% |
| Wednesday | 75°F | Sunny | 0 to 10 mph SSW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 5 mph SSW | 0% |
| Thursday | 80°F | Sunny | 5 to 15 mph SSW | 0% |
| Thursday Night | 62°F | Mostly Clear | 5 to 10 mph S | 2% |
| Friday | 82°F | Sunny | 5 to 10 mph SSW | 4% |
| Friday Night | 62°F | Mostly Clear | 5 to 10 mph SSW | 11% |
| Saturday | 81°F | Sunny | 5 to 10 mph S | 9% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 5 to 10 mph ESE | 45% |
| Sunday | 80°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph ESE | 45% |
| Sunday Night | 63°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph NE | 16% |
| Monday | 80°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 18% |
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 Aug 4, 2026.