Harman US

Boon, MI Weather & Growing Conditions

This Afternoon
70°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. High near 70, with temperatures falling to around 67 in the afternoon. South wind 10 to 15 mph. Chance of precipitation is 30%.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 70°F Chance Rain Showers 10 to 15 mph S 29%
Tonight 58°F Chance Rain Showers 10 mph S 28%
Wednesday 67°F Rain Showers 10 to 15 mph S 84%
Wednesday Night 45°F Rain Showers 10 mph SW 86%
Thursday 52°F Rain Showers 5 to 10 mph SW 92%
Thursday Night 36°F Rain Showers 5 to 10 mph NW 92%
Friday 47°F Rain Showers Likely 10 mph N 59%
Friday Night 30°F Chance Rain Showers then Mostly Cloudy 0 to 10 mph N 40%
Saturday 49°F Mostly Sunny 0 to 5 mph NW 6%
Saturday Night 29°F Partly Cloudy 0 to 5 mph SW 7%
Sunday 53°F Slight Chance Rain Showers 5 to 10 mph W 20%
Sunday Night 32°F Slight Chance Rain Showers then Partly Cloudy 5 mph W 20%
Monday 55°F Mostly Sunny 5 to 10 mph SW 11%
Monday Night 36°F Partly Cloudy 10 mph W 11%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Boon, MI

Last spring frost
May 19
First fall frost
Oct 1
Growing season
135 days
Hardiness zone
5a

Explore more for Boon, MI: full frost dates · planting calendar · Michigan frost dates

Climate data from the nearest NOAA station, Cadillac, Mi (9.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.