Cannon Falls, MN Weather & Growing Conditions
Tonight
50°F
Light Rain
Rain and patchy fog before midnight, then rain and a slight chance of thunderstorms. Cloudy. Low around 50, with temperatures rising to around 53 overnight. North wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Light Rain | 5 mph N | 98% |
| Wednesday | 55°F | Light Rain | 5 to 10 mph SW | 89% |
| Wednesday Night | 43°F | Light Rain | 10 to 15 mph NW | 92% |
| Thursday | 48°F | Light Rain Likely | 10 to 15 mph N | 63% |
| Thursday Night | 34°F | Mostly Cloudy | 5 to 10 mph NNE | 5% |
| Friday | 46°F | Partly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 5 mph WSW | 9% |
| Sunday | 55°F | Mostly Sunny | 5 to 10 mph W | 9% |
| Sunday Night | 36°F | Partly Cloudy | 5 mph SW | 2% |
| Monday | 58°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 55°F | Mostly Sunny | 5 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cannon Falls, MN
Last spring frost
Apr 23
First fall frost
Oct 14
Growing season
173 days
Hardiness zone
4b
Explore more for Cannon Falls, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Red Wing Dam 3, Mn (15.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.