Le Roy, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Le Roy, a city in Mower County, Minnesota.
Today
72°F
Mostly Cloudy then Isolated Showers And Thunderstorms
Isolated rain showers between 2pm and 3pm, then isolated showers and thunderstorms between 3pm and 4pm, then scattered showers and thunderstorms. Mostly cloudy. High near 72, with temperatures falling to around 69 in the afternoon. Northwest wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Le Roy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Cloudy then Isolated Showers And Thunderstorms | 10 mph NW | 42% |
| Tonight | 57°F | Scattered Showers And Thunderstorms | 7 mph NW | 54% |
| Wednesday | 73°F | Mostly Sunny | 5 mph N | 2% |
| Wednesday Night | 55°F | Mostly Clear | 5 mph W | 0% |
| Thursday | 76°F | Sunny | 2 to 7 mph SW | 0% |
| Thursday Night | 60°F | Mostly Clear | 7 mph S | 1% |
| Friday | 79°F | Sunny | 7 to 13 mph S | 11% |
| Friday Night | 64°F | Mostly Clear | 12 mph S | 12% |
| Saturday | 80°F | Sunny | 7 to 10 mph S | 11% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 12 mph SW | 35% |
| Sunday | 81°F | Chance Showers And Thunderstorms | 10 mph S | 35% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 9 mph S | 35% |
| Monday | 80°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 10 mph E | 35% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 mph NE | 34% |
Forecast source: National Weather Service (api.weather.gov) for Le Roy (43.513, -92.508). Updated through the day.
Growing snapshot for Le Roy
Last spring frost
May 6
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
4b
More local growing data for Le Roy: nearby ZIP 55951 weather · frost dates · planting calendar · Minnesota frost dates
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Climate data from the nearest NOAA station, Grand Meadow, Mn (12.8 mi from Le Roy). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.