Harman US

Herman, MN Weather & Growing Conditions

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

This Afternoon
49°F
Cloudy
Cloudy. High near 49, with temperatures falling to around 45 in the afternoon. North northwest wind around 21 mph. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Herman

WhenTempForecastWindPrecip
This Afternoon 49°F Cloudy 21 mph NNW 11%
Tonight 40°F Light Rain 15 to 20 mph NNW 87%
Wednesday 45°F Light Rain 20 mph NNW 91%
Wednesday Night 35°F Chance Light Rain then Mostly Cloudy 14 to 18 mph NNW 33%
Thursday 42°F Mostly Cloudy 9 to 15 mph NNW 3%
Thursday Night 30°F Mostly Cloudy 1 to 8 mph NE 0%
Friday 43°F Partly Sunny 3 mph SSE 0%
Friday Night 30°F Partly Cloudy 5 mph S 0%
Saturday 54°F Mostly Sunny 5 to 9 mph SW 4%
Saturday Night 34°F Partly Cloudy 6 mph WNW 10%
Sunday 54°F Mostly Sunny 7 mph WSW 3%
Sunday Night 37°F Partly Cloudy 6 mph S 0%
Monday 57°F Mostly Sunny 6 to 15 mph W 1%
Monday Night 36°F Mostly Clear 5 to 8 mph WNW 0%

Forecast source: National Weather Service (api.weather.gov) for Herman (45.811, -96.141). Updated through the day.

Growing snapshot for Herman

Last spring frost
May 1
First fall frost
Oct 9
Growing season
160 days
Hardiness zone
4b

More local growing data for Herman: nearby ZIP 56248 weather · frost dates · planting calendar · Minnesota frost dates

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Climate data from the nearest NOAA station, Wheaton, Mn (17.8 mi from Herman). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.