Onaway, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Onaway, a city in Presque Isle County, Michigan.
This Afternoon
64°F
Mostly Cloudy
Mostly cloudy, with a high near 64. Northeast wind around 5 mph.
7-day forecast for Onaway
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Mostly Cloudy | 5 mph NE | 0% |
| Tonight | 41°F | Mostly Cloudy | 0 to 5 mph E | 6% |
| Saturday | 68°F | Partly Sunny | 5 to 10 mph SE | 12% |
| Saturday Night | 46°F | Scattered Rain Showers | 0 to 10 mph E | 31% |
| Sunday | 67°F | Isolated Rain Showers then Partly Sunny | 5 to 10 mph N | 16% |
| Sunday Night | 41°F | Partly Cloudy | 5 to 10 mph NE | 2% |
| Monday | 59°F | Partly Sunny | 10 mph NE | 0% |
| Monday Night | 40°F | Mostly Cloudy | 5 to 10 mph E | 0% |
| Tuesday | 61°F | Mostly Sunny | 10 to 15 mph E | 4% |
| Tuesday Night | 41°F | Partly Cloudy | 5 to 15 mph E | 6% |
| Wednesday | 64°F | Slight Chance Rain Showers | 5 to 15 mph E | 18% |
| Wednesday Night | 43°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 10 mph E | 17% |
| Thursday | 67°F | Mostly Sunny | 5 to 10 mph NE | 7% |
| Thursday Night | 43°F | Partly Cloudy | 0 to 5 mph SE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Onaway (45.359, -84.227). Updated through the day.
Growing snapshot for Onaway
Last spring frost
May 22
First fall frost
Oct 2
Growing season
135 days
Hardiness zone
5a
More local growing data for Onaway: nearby ZIP 49765 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Onaway 4N, Mi (5.3 mi from Onaway). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.