Big Falls, MN Weather & Growing Conditions
Overnight
45°F
Light Rain
Rain and patchy fog. Cloudy, with a low around 45. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Light Rain | 10 mph N | 75% |
| Wednesday | 48°F | Light Rain | 10 mph N | 88% |
| Wednesday Night | 32°F | Chance Light Rain then Mostly Cloudy | 10 mph N | 25% |
| Thursday | 40°F | Mostly Cloudy | 5 to 10 mph N | 1% |
| Thursday Night | 18°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Friday | 42°F | Sunny | 0 to 5 mph S | 0% |
| Friday Night | 22°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 48°F | Mostly Sunny | 5 mph SW | 8% |
| Saturday Night | 30°F | Partly Cloudy | 5 mph W | 10% |
| Sunday | 49°F | Mostly Sunny | 5 mph W | 5% |
| Sunday Night | 30°F | Mostly Cloudy | 0 to 5 mph SW | 0% |
| Monday | 54°F | Partly Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 29°F | Partly Cloudy | 5 mph W | 1% |
| Tuesday | 49°F | Mostly Sunny | 5 mph W | 5% |
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 Nov 4, 2026.