Harman US

Rock, MI Weather & Growing Conditions

This Afternoon
63°F
Chance Rain Showers
A chance of rain showers and patchy fog. Mostly cloudy. High near 63, with temperatures falling to around 59 in the afternoon. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 63°F Chance Rain Showers 10 mph S 43%
Tonight 46°F Rain Showers Likely 5 to 10 mph S 64%
Thursday 51°F Rain Showers 5 to 15 mph NW 78%
Thursday Night 30°F Rain Showers Likely 10 to 15 mph N 72%
Friday 42°F Chance Rain And Snow Showers 10 mph N 34%
Friday Night 25°F Slight Chance Rain Showers then Partly Cloudy 0 to 10 mph N 17%
Saturday 48°F Mostly Sunny 0 to 5 mph NW 0%
Saturday Night 27°F Partly Cloudy 0 to 5 mph W 6%
Sunday 52°F Mostly Sunny 5 to 10 mph W 7%
Sunday Night 29°F Partly Cloudy 0 to 5 mph W 7%
Monday 54°F Mostly Sunny 0 to 10 mph SW 4%
Monday Night 34°F Mostly Cloudy then Slight Chance Rain Showers 5 mph W 15%
Tuesday 54°F Slight Chance Rain Showers 5 to 10 mph NW 15%
Tuesday Night 30°F Mostly Cloudy 0 to 5 mph NW 4%

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

Growing snapshot for Rock, MI

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

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

Climate data from the nearest NOAA station, Cornell 5Se, Mi (14.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.