Ostrander, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ostrander, a city in Mower County, Minnesota.
Today
72°F
Mostly Cloudy then Scattered Showers And Thunderstorms
Isolated rain showers between noon and 3pm, 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 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Ostrander
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Cloudy then Scattered Showers And Thunderstorms | 10 mph NW | 53% |
| Tonight | 57°F | Chance Showers And Thunderstorms | 5 to 8 mph NW | 59% |
| Wednesday | 72°F | Mostly Sunny | 5 mph N | 2% |
| Wednesday Night | 55°F | Mostly Clear | 5 mph W | 0% |
| Thursday | 76°F | Sunny | 3 to 7 mph SW | 0% |
| Thursday Night | 60°F | Mostly Clear | 8 mph S | 1% |
| Friday | 79°F | Sunny | 8 to 14 mph SW | 11% |
| Friday Night | 64°F | Mostly Clear | 12 mph SW | 11% |
| Saturday | 80°F | Sunny | 7 to 12 mph S | 11% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 13 mph SW | 36% |
| Sunday | 80°F | Chance Showers And Thunderstorms | 12 mph SW | 36% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 9 mph SE | 37% |
| Monday | 79°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 10 mph E | 37% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph NE | 30% |
Forecast source: National Weather Service (api.weather.gov) for Ostrander (43.614, -92.426). Updated through the day.
Growing snapshot for Ostrander
Last spring frost
May 6
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
4b
More local growing data for Ostrander: nearby ZIP 55961 weather · frost dates · planting calendar · Minnesota frost dates
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Climate data from the nearest NOAA station, Grand Meadow, Mn (8.2 mi from Ostrander). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.