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
43°F
Light Rain Likely
Rain likely and patchy fog. Cloudy, with a low around 43. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Granite Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Light Rain Likely | 15 mph NW | 69% |
| Wednesday | 46°F | Drizzle then Light Rain | 15 to 20 mph NW | 95% |
| Wednesday Night | 38°F | Light Rain then Cloudy | 15 mph NW | 86% |
| Thursday | 45°F | Mostly Cloudy | 10 to 15 mph NNW | 2% |
| Thursday Night | 30°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 43°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 28°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph SSW | 1% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 55°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 60°F | Mostly Sunny | 5 to 10 mph W | 0% |
| Monday Night | 37°F | Mostly Clear | 0 to 5 mph WNW | 0% |
| Tuesday | 55°F | Mostly Sunny | 0 to 5 mph NW | 1% |
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 Nov 4, 2026.