Preston, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Preston, a city in Fillmore County, Minnesota.
This Afternoon
68°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. High near 68, with temperatures falling to around 64 in the afternoon. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Preston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Showers And Thunderstorms Likely | 6 to 10 mph SW | 58% |
| Tonight | 52°F | Showers And Thunderstorms | 6 to 12 mph E | 93% |
| Wednesday | 54°F | Rain Showers Likely | 8 to 15 mph SW | 74% |
| Wednesday Night | 45°F | Rain Showers | 15 mph W | 87% |
| Thursday | 49°F | Rain Showers | 15 mph NW | 75% |
| Thursday Night | 37°F | Mostly Cloudy | 8 to 12 mph N | 9% |
| Friday | 47°F | Partly Sunny | 3 to 8 mph N | 0% |
| Friday Night | 30°F | Partly Cloudy | 2 mph NW | 0% |
| Saturday | 52°F | Mostly Sunny | 1 to 6 mph SW | 0% |
| Saturday Night | 36°F | Partly Cloudy | 6 mph W | 6% |
| Sunday | 58°F | Mostly Sunny | 8 mph W | 11% |
| Sunday Night | 37°F | Mostly Clear | 6 mph SW | 3% |
| Monday | 60°F | Mostly Sunny | 6 to 13 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 7 mph W | 1% |
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 Nov 3, 2026.