Preston, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Preston, a city in Fillmore County, Minnesota.
Tonight
58°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 58. East wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Preston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Showers And Thunderstorms | 9 to 14 mph E | 97% |
| Saturday | 66°F | Showers And Thunderstorms | 8 mph NE | 92% |
| Saturday Night | 55°F | Slight Chance Showers And Thunderstorms | 8 to 12 mph N | 19% |
| Sunday | 66°F | Mostly Cloudy | 13 mph NE | 12% |
| Sunday Night | 49°F | Mostly Cloudy | 10 mph NE | 8% |
| Monday | 61°F | Chance Rain Showers | 10 mph NE | 37% |
| Monday Night | 45°F | Chance Rain Showers | 8 mph NE | 37% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 5 to 8 mph E | 15% |
| Tuesday Night | 43°F | Partly Cloudy | 5 mph E | 4% |
| Wednesday | 64°F | Sunny | 5 mph E | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 2 mph SE | 5% |
| Thursday | 67°F | Partly Sunny | 3 mph S | 12% |
| Thursday Night | 50°F | Partly Cloudy | 1 mph S | 8% |
| Friday | 68°F | Mostly Sunny | 1 to 5 mph SE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Preston (43.673, -92.083). Updated through the day.
Growing snapshot for Preston
Last spring frost
May 14
First fall frost
Sep 28
Growing season
136 days
Hardiness zone
4b
More local growing data for Preston: nearby ZIP 55965 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Canton
Chatfield
Fountain
Harmony
Lanesboro
Mabel
Peterson
Rushford
Rushford Village
Spring Valley
Whalan
Wykoff
Climate data from the nearest NOAA station, Preston, Mn (4.3 mi from Preston). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.