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.
Overnight
57°F
Chance Rain Showers
A chance of rain showers and patchy fog before 4am, then patchy fog and a slight chance of rain showers. Cloudy, with a low around 57. East northeast wind around 5 mph. Chance of precipitation is 30%.
7-day forecast for Granite Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Chance Rain Showers | 5 mph ENE | 32% |
| Saturday | 64°F | Patchy Fog then Cloudy | 5 to 10 mph NE | 16% |
| Saturday Night | 52°F | Mostly Cloudy | 5 to 10 mph NNE | 4% |
| Sunday | 67°F | Partly Sunny | 5 to 10 mph NE | 0% |
| Sunday Night | 48°F | Mostly Cloudy | 5 to 10 mph ENE | 4% |
| Monday | 65°F | Mostly Cloudy | 5 to 10 mph E | 10% |
| Monday Night | 43°F | Partly Cloudy | 0 to 5 mph E | 7% |
| Tuesday | 66°F | Mostly Sunny | 5 to 10 mph ESE | 3% |
| Tuesday Night | 43°F | Mostly Clear | 5 mph SE | 0% |
| Wednesday | 68°F | Mostly Sunny | 5 to 10 mph SE | 4% |
| Wednesday Night | 48°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SE | 15% |
| Thursday | 70°F | Slight Chance Rain Showers | 5 to 10 mph SSE | 15% |
| Thursday Night | 51°F | Partly Cloudy | 5 mph SE | 10% |
| Friday | 73°F | Partly Sunny | 5 to 10 mph SSE | 10% |
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 Sep 19, 2026.