Big Falls, MN Weather & Growing Conditions
This Afternoon
68°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy. High near 68, with temperatures falling to around 65 in the afternoon. North wind around 0 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Slight Chance Rain Showers | 0 mph | 21% |
| Tonight | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph N | 22% |
| Sunday | 62°F | Partly Sunny | 0 to 5 mph NE | 0% |
| Sunday Night | 37°F | Mostly Cloudy | 0 to 5 mph E | 0% |
| Monday | 63°F | Patchy Frost then Sunny | 0 to 5 mph SE | 0% |
| Monday Night | 35°F | Mostly Clear then Patchy Frost | 0 mph | 0% |
| Tuesday | 64°F | Areas Of Frost then Sunny | 0 to 5 mph SE | 0% |
| Tuesday Night | 37°F | Clear | 0 to 5 mph SE | 0% |
| Wednesday | 65°F | Sunny | 5 to 10 mph SE | 0% |
| Wednesday Night | 43°F | Partly Cloudy | 5 mph SE | 4% |
| Thursday | 66°F | Chance Rain Showers | 5 to 10 mph S | 28% |
| Thursday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph S | 28% |
| Friday | 71°F | Partly Sunny | 0 to 5 mph S | 4% |
| Friday Night | 52°F | Partly Cloudy | 5 mph S | 7% |
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 (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.