Harman US

Alpha, MN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Alpha, a city in Jackson County, Minnesota.

This Afternoon
54°F
Rain Showers
Rain showers. Cloudy. High near 54, with temperatures falling to around 48 in the afternoon. North northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Alpha

WhenTempForecastWindPrecip
This Afternoon 54°F Rain Showers 15 mph NNW 99%
Tonight 41°F Rain Showers 15 mph NNW 96%
Wednesday 46°F Rain Showers 15 mph NW 90%
Wednesday Night 38°F Rain Showers Likely 15 mph NW 62%
Thursday 45°F Chance Rain Showers 15 mph NNW 39%
Thursday Night 33°F Mostly Cloudy 5 to 10 mph N 2%
Friday 45°F Partly Sunny 0 to 5 mph NNE 1%
Friday Night 30°F Partly Cloudy 0 to 5 mph SSE 0%
Saturday 53°F Mostly Sunny 5 to 10 mph SW 2%
Saturday Night 35°F Mostly Clear 5 mph W 3%
Sunday 57°F Sunny 5 to 10 mph W 6%
Sunday Night 37°F Mostly Clear 5 to 10 mph SSW 1%
Monday 59°F Sunny 10 mph WSW 0%
Monday Night 38°F Mostly Clear 5 mph WNW 0%

Forecast source: National Weather Service (api.weather.gov) for Alpha (43.638, -94.871). Updated through the day.

Growing snapshot for Alpha

Last spring frost
Apr 28
First fall frost
Oct 8
Growing season
162 days
Hardiness zone
5a

More local growing data for Alpha: nearby ZIP 56111 weather · frost dates · planting calendar · Minnesota frost dates

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Climate data from the nearest NOAA station, Sherburn 3Wsw, Mn (5.7 mi from Alpha). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.