Big Falls, MN Weather & Growing Conditions
Tonight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. Southeast wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Cloudy | 0 mph | 1% |
| Saturday | 68°F | Partly Sunny | 0 to 5 mph NE | 2% |
| Saturday Night | 45°F | Mostly Cloudy | 0 to 5 mph N | 1% |
| Sunday | 63°F | Mostly Sunny | 5 mph NE | 0% |
| Sunday Night | 36°F | Mostly Cloudy | 0 to 5 mph E | 0% |
| Monday | 63°F | Patchy Frost then Mostly Sunny | 0 to 5 mph SE | 0% |
| Monday Night | 35°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 65°F | Sunny | 0 to 5 mph SE | 0% |
| Tuesday Night | 38°F | Mostly Clear | 0 to 5 mph SE | 0% |
| Wednesday | 65°F | Mostly Sunny | 5 mph S | 1% |
| Wednesday Night | 43°F | Partly Cloudy | 5 mph S | 11% |
| Thursday | 68°F | Partly Sunny | 5 mph S | 11% |
| Thursday Night | 46°F | Partly Cloudy | 0 to 5 mph S | 9% |
| Friday | 70°F | Mostly Sunny | 5 mph S | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Big Falls, MN
Last spring frost
May 24
First fall frost
Sep 20
Growing season
117 days
Hardiness zone
3b
Explore more for Big Falls, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Big Falls, Mn (8.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.