Onaway, MI Weather & Growing Conditions
This Afternoon
87°F
Sunny
Sunny, with a high near 87. Southwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 87°F | Sunny | 10 mph SW | 0% |
| Tonight | 59°F | Mostly Cloudy then Chance Showers And Thunderstorms | 0 to 10 mph W | 68% |
| Wednesday | 76°F | Chance Showers And Thunderstorms | 5 mph N | 68% |
| Wednesday Night | 52°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph NW | 20% |
| Thursday | 81°F | Mostly Sunny | 0 to 5 mph SE | 2% |
| Thursday Night | 54°F | Mostly Clear | 5 mph SE | 1% |
| Friday | 84°F | Sunny | 5 mph SW | 2% |
| Friday Night | 60°F | Mostly Clear | 0 to 5 mph W | 9% |
| Saturday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 15 mph W | 20% |
| Saturday Night | 55°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph SW | 23% |
| Sunday | 81°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 26% |
| Sunday Night | 55°F | Chance Showers And Thunderstorms | 0 to 10 mph W | 26% |
| Monday | 79°F | Chance Rain Showers | 0 to 10 mph W | 44% |
| Monday Night | 53°F | Chance Rain Showers | 0 to 5 mph NW | 44% |
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 Aug 4, 2026.