Afton, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Afton, a city in Washington County, Minnesota.
Today
75°F
Patchy Smoke
Patchy smoke between 11am and 2pm. Partly sunny, with a high near 75. Northwest wind 5 to 10 mph.
7-day forecast for Afton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Patchy Smoke | 5 to 10 mph NW | 5% |
| Tonight | 55°F | Mostly Cloudy | 0 to 10 mph WNW | 3% |
| Wednesday | 78°F | Sunny | 0 to 10 mph WNW | 0% |
| Wednesday Night | 58°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Thursday | 81°F | Sunny | 5 to 15 mph SSW | 0% |
| Thursday Night | 63°F | Mostly Clear | 5 to 15 mph SSW | 3% |
| Friday | 84°F | Sunny | 5 to 15 mph SSW | 11% |
| Friday Night | 64°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 30% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph SSW | 15% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 5 mph NNE | 47% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 47% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 19% |
| Monday | 81°F | Slight Chance Showers And Thunderstorms | 5 mph ENE | 22% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms | 5 mph NNE | 24% |
Forecast source: National Weather Service (api.weather.gov) for Afton (44.899, -92.819). Updated through the day.
Growing snapshot for Afton
Last spring frost
Apr 23
First fall frost
Oct 19
Growing season
177 days
Hardiness zone
5a
More local growing data for Afton: nearby ZIP 55001 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Bayport
Birchwood Village
Cottage Grove
Dellwood
Grant
Hugo
Lake Elmo
Lake St. Croix Beach
Lakeland
Lakeland Shores
Mahtomedi
Marine on St. Croix
Newport
Oak Park Heights
Oakdale
Pine Springs
Scandia
St. Marys Point
St. Paul Park
Stillwater
Willernie
Woodbury
Climate data from the nearest NOAA station, Hastings Dam 2, Mn (9.9 mi from Afton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.