Peterson, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Peterson, a city in Fillmore County, Minnesota.
Today
76°F
Mostly Cloudy then Scattered Rain Showers
Scattered rain showers after 2pm. Mostly cloudy. High near 76, with temperatures falling to around 73 in the afternoon. Northwest wind 6 to 9 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Peterson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Cloudy then Scattered Rain Showers | 6 to 9 mph NW | 41% |
| Tonight | 58°F | Scattered Rain Showers | 6 mph W | 49% |
| Wednesday | 76°F | Mostly Sunny | 3 mph NW | 2% |
| Wednesday Night | 54°F | Mostly Clear | 3 mph W | 0% |
| Thursday | 80°F | Sunny | 1 to 6 mph SW | 0% |
| Thursday Night | 60°F | Mostly Clear | 5 mph S | 0% |
| Friday | 83°F | Sunny | 5 to 10 mph SW | 8% |
| Friday Night | 64°F | Mostly Clear | 6 to 10 mph SW | 14% |
| Saturday | 84°F | Mostly Sunny | 6 to 9 mph SW | 14% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 8 mph SW | 39% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 6 to 10 mph SW | 39% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 3 to 7 mph SE | 40% |
| Monday | 82°F | Chance Rain Showers | 7 mph E | 40% |
| Monday Night | 65°F | Chance Rain Showers | 7 mph N | 28% |
Forecast source: National Weather Service (api.weather.gov) for Peterson (43.788, -91.832). Updated through the day.
Growing snapshot for Peterson
Last spring frost
May 8
First fall frost
Oct 3
Growing season
147 days
Hardiness zone
4b
More local growing data for Peterson: nearby ZIP 55962 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Canton
Chatfield
Fountain
Harmony
Lanesboro
Mabel
Preston
Rushford
Rushford Village
Spring Valley
Whalan
Wykoff
Climate data from the nearest NOAA station, Rushford, Mn (5.6 mi from Peterson). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.