Granite Falls, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Granite Falls, a city in Yellow Medicine County, Minnesota.
Today
71°F
Patchy Smoke then Partly Sunny
Patchy smoke before 11am. Partly sunny, with a high near 71. Northwest wind 5 to 10 mph.
7-day forecast for Granite Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Patchy Smoke then Partly Sunny | 5 to 10 mph NW | 2% |
| Tonight | 52°F | Partly Cloudy | 0 to 5 mph WSW | 2% |
| Wednesday | 77°F | Sunny | 0 to 10 mph SSW | 0% |
| Wednesday Night | 58°F | Partly Cloudy | 5 to 10 mph SSW | 1% |
| Thursday | 82°F | Sunny | 5 to 15 mph SSW | 1% |
| Thursday Night | 63°F | Mostly Clear | 5 to 10 mph S | 3% |
| Friday | 84°F | Sunny | 5 to 10 mph SSW | 7% |
| Friday Night | 62°F | Mostly Clear | 5 to 10 mph S | 8% |
| Saturday | 83°F | Sunny | 5 to 10 mph S | 7% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 5 to 10 mph ENE | 32% |
| Sunday | 82°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph NNE | 30% |
| Sunday Night | 63°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph ENE | 17% |
| Monday | 81°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 17% |
| Monday Night | 63°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Granite Falls (44.807, -95.542). Updated through the day.
Growing snapshot for Granite Falls
Last spring frost
May 4
First fall frost
Oct 1
Growing season
150 days
Hardiness zone
4b
More local growing data for Granite Falls: nearby ZIP 56241 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Granite Falls, Mn (1.5 mi from Granite Falls). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.