Afton, MN Weather & Growing Conditions
Tonight
51°F
Rain
Rain and patchy fog before 3am, then rain and a slight chance of thunderstorms. Cloudy. Low around 51, with temperatures rising to around 54 overnight. North northeast 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 | 51°F | Rain | 5 mph NNE | 98% |
| Wednesday | 56°F | Light Rain | 5 to 10 mph NE | 86% |
| Wednesday Night | 44°F | Light Rain | 10 to 15 mph NNW | 86% |
| Thursday | 49°F | Light Rain Likely | 10 to 15 mph N | 56% |
| Thursday Night | 35°F | Mostly Cloudy | 5 to 10 mph NNE | 2% |
| Friday | 46°F | Partly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 30°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph WSW | 1% |
| Saturday Night | 36°F | Partly Cloudy | 5 mph WSW | 8% |
| Sunday | 55°F | Mostly Sunny | 5 to 10 mph W | 11% |
| Sunday Night | 37°F | Partly Cloudy | 5 mph SW | 2% |
| Monday | 57°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 5 mph WNW | 1% |
| Tuesday | 54°F | Sunny | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Afton, MN
Last spring frost
Apr 23
First fall frost
Oct 19
Growing season
177 days
Hardiness zone
5a
Explore more for Afton, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Hastings Dam 2, Mn (9.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.