Willmar, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Willmar, a city in Kandiyohi County, Minnesota.
Today
71°F
Patchy Smoke then Partly Sunny
Patchy smoke between 8am and noon. Partly sunny, with a high near 71. Northwest wind 5 to 10 mph.
7-day forecast for Willmar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Patchy Smoke then Partly Sunny | 5 to 10 mph NW | 4% |
| Tonight | 52°F | Mostly Clear | 0 to 10 mph WSW | 1% |
| Wednesday | 75°F | Sunny | 0 to 10 mph SSW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 5 to 10 mph SSW | 0% |
| Thursday | 81°F | Sunny | 5 to 15 mph SSW | 0% |
| Thursday Night | 62°F | Mostly Clear | 10 mph S | 2% |
| Friday | 83°F | Sunny | 5 to 10 mph SSW | 5% |
| Friday Night | 62°F | Mostly Clear | 5 to 10 mph S | 7% |
| Saturday | 82°F | Sunny | 5 to 10 mph SSW | 10% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 10 mph ESE | 41% |
| Sunday | 81°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph NNW | 41% |
| Sunday Night | 63°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph ENE | 17% |
| Monday | 80°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 17% |
| Monday Night | 62°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 18% |
Forecast source: National Weather Service (api.weather.gov) for Willmar (45.121, -95.059). Updated through the day.
Growing snapshot for Willmar
Last spring frost
Apr 30
First fall frost
Oct 7
Growing season
159 days
Hardiness zone
4b
More local growing data for Willmar: nearby ZIP 56201 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Willmar Wwtp, Mn (0.5 mi from Willmar). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.