Harmony, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harmony, a city in Fillmore County, Minnesota.
Tonight
51°F
Showers And Thunderstorms
Rain showers before 9pm, then showers and thunderstorms. Cloudy. Low around 51, with temperatures rising to around 55 overnight. Southeast wind 7 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Harmony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Showers And Thunderstorms | 7 to 14 mph SE | 89% |
| Wednesday | 54°F | Rain Showers Likely | 10 to 15 mph SW | 72% |
| Wednesday Night | 45°F | Rain Showers | 15 mph W | 79% |
| Thursday | 49°F | Rain Showers | 14 mph NW | 75% |
| Thursday Night | 37°F | Mostly Cloudy | 10 to 14 mph N | 9% |
| Friday | 46°F | Partly Sunny | 5 to 10 mph N | 1% |
| Friday Night | 31°F | Partly Cloudy | 2 mph NW | 0% |
| Saturday | 51°F | Mostly Sunny | 2 to 6 mph SW | 0% |
| Saturday Night | 36°F | Partly Cloudy | 5 to 8 mph W | 6% |
| Sunday | 56°F | Mostly Sunny | 9 mph NW | 11% |
| Sunday Night | 38°F | Mostly Clear | 6 to 9 mph SW | 3% |
| Monday | 59°F | Mostly Sunny | 9 to 14 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 9 mph W | 1% |
| Tuesday | 56°F | Sunny | 8 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Harmony (43.554, -92.007). Updated through the day.
Growing snapshot for Harmony
Last spring frost
May 14
First fall frost
Sep 28
Growing season
136 days
Hardiness zone
4b
More local growing data for Harmony: nearby ZIP 55939 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Canton
Chatfield
Fountain
Lanesboro
Mabel
Peterson
Preston
Rushford
Rushford Village
Spring Valley
Whalan
Wykoff
Climate data from the nearest NOAA station, Preston, Mn (8.7 mi from Harmony). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.