Harman US

Onaway, MI Weather & Growing Conditions

This Afternoon
72°F
Slight Chance Rain Showers
A slight chance of rain showers between 3pm and 5pm. Cloudy. High near 72, with temperatures falling to around 70 in the afternoon. South wind around 10 mph. Chance of precipitation is 20%.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 72°F Slight Chance Rain Showers 10 mph S 16%
Tonight 57°F Slight Chance Rain Showers 5 to 10 mph S 19%
Wednesday 70°F Rain Showers Likely 5 to 10 mph S 72%
Wednesday Night 47°F Rain Showers Likely then Mostly Cloudy 5 to 10 mph S 71%
Thursday 55°F Rain Showers 5 to 10 mph SW 89%
Thursday Night 34°F Rain Showers 0 to 10 mph NW 93%
Friday 46°F Rain Showers Likely 10 mph N 74%
Friday Night 30°F Chance Rain Showers 5 to 10 mph N 31%
Saturday 49°F Mostly Sunny 5 mph NW 10%
Saturday Night 29°F Partly Cloudy 0 to 5 mph W 7%
Sunday 53°F Mostly Sunny then Slight Chance Rain Showers 5 to 10 mph W 19%
Sunday Night 32°F Slight Chance Rain Showers then Mostly Cloudy 5 to 10 mph NW 19%
Monday 55°F Partly Sunny 5 to 10 mph W 8%
Monday Night 35°F Mostly Cloudy 5 to 10 mph W 8%

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

Growing snapshot for Onaway, MI

Last spring frost
May 22
First fall frost
Oct 2
Growing season
135 days
Hardiness zone
5a

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

Climate data from the nearest NOAA station, Onaway 4N, Mi (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.