Onaway, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Onaway, a city in Presque Isle County, Michigan.
Overnight
62°F
Partly Cloudy
Partly cloudy. Low around 62, with temperatures rising to around 64 overnight. South wind around 5 mph.
7-day forecast for Onaway
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Partly Cloudy | 5 mph S | 5% |
| Wednesday | 70°F | Rain Showers Likely | 5 to 10 mph S | 72% |
| Wednesday Night | 46°F | Rain Showers Likely then Mostly Cloudy | 10 mph S | 64% |
| Thursday | 54°F | Rain Showers | 10 mph SW | 90% |
| Thursday Night | 31°F | Rain Showers | 5 to 15 mph NW | 98% |
| Friday | 45°F | Rain Showers | 10 to 15 mph N | 82% |
| Friday Night | 27°F | Slight Chance Rain And Snow Showers | 5 to 10 mph N | 54% |
| Saturday | 47°F | Mostly Sunny | 5 mph NW | 3% |
| Saturday Night | 26°F | Partly Cloudy | 5 mph W | 4% |
| Sunday | 52°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 15 mph W | 21% |
| Sunday Night | 30°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 10 mph W | 21% |
| Monday | 55°F | Partly Sunny | 5 to 10 mph W | 4% |
| Monday Night | 34°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph W | 15% |
| Tuesday | 54°F | Slight Chance Rain Showers then Mostly Sunny | 10 to 15 mph W | 15% |
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 Nov 4, 2026.