International Falls, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for International Falls, a city in Koochiching County, Minnesota.
Tonight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. South wind 0 to 5 mph.
7-day forecast for International Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Cloudy | 0 to 5 mph S | 6% |
| Saturday | 66°F | Mostly Cloudy | 0 to 5 mph SW | 12% |
| Saturday Night | 45°F | Mostly Cloudy | 5 mph N | 9% |
| Sunday | 61°F | Mostly Sunny | 5 to 10 mph NE | 0% |
| Sunday Night | 37°F | Partly Cloudy | 5 mph E | 0% |
| Monday | 62°F | Patchy Frost then Sunny | 0 to 5 mph SE | 0% |
| Monday Night | 36°F | Mostly Clear | 5 mph SE | 0% |
| Tuesday | 64°F | Sunny | 5 mph SE | 0% |
| Tuesday Night | 38°F | Mostly Clear | 5 mph SE | 0% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph S | 1% |
| Wednesday Night | 42°F | Partly Cloudy | 5 mph S | 9% |
| Thursday | 67°F | Partly Sunny | 5 to 10 mph S | 10% |
| Thursday Night | 45°F | Partly Cloudy | 5 mph SW | 10% |
| Friday | 69°F | Mostly Sunny | 5 to 10 mph S | 5% |
Forecast source: National Weather Service (api.weather.gov) for International Falls (48.586, -93.408). Updated through the day.
Growing snapshot for International Falls
Last spring frost
May 29
First fall frost
Sep 13
Growing season
109 days
Hardiness zone
3a
More local growing data for International Falls: nearby ZIP 56668 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Intl Falls Intl Ap, Mn (4.4 mi from International Falls). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.