Petoskey, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Petoskey, a city in Charlevoix County, Michigan.
Tonight
48°F
Mostly Cloudy
Mostly cloudy. Low around 48, with temperatures rising to around 50 overnight. East wind 5 to 10 mph.
7-day forecast for Petoskey
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Mostly Cloudy | 5 to 10 mph E | 3% |
| Saturday | 68°F | Partly Sunny then Isolated Rain Showers | 5 to 10 mph SE | 18% |
| Saturday Night | 52°F | Scattered Rain Showers | 5 mph E | 30% |
| Sunday | 68°F | Isolated Rain Showers then Mostly Sunny | 5 to 10 mph NE | 23% |
| Sunday Night | 49°F | Mostly Cloudy | 10 mph NE | 0% |
| Monday | 60°F | Partly Sunny | 10 to 15 mph E | 0% |
| Monday Night | 47°F | Mostly Cloudy | 5 to 10 mph E | 0% |
| Tuesday | 60°F | Mostly Sunny | 5 to 15 mph E | 3% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 15 mph E | 8% |
| Wednesday | 64°F | Sunny | 5 to 10 mph E | 12% |
| Wednesday Night | 51°F | Partly Cloudy | 5 to 10 mph E | 12% |
| Thursday | 66°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Thursday Night | 52°F | Partly Cloudy | 5 mph E | 5% |
| Friday | 68°F | Mostly Sunny | 5 to 10 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Petoskey (45.365, -85.011). Updated through the day.
Growing snapshot for Petoskey
Last spring frost
May 16
First fall frost
Oct 9
Growing season
147 days
Hardiness zone
5b
More local growing data for Petoskey: nearby ZIP 49796 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Petoskey Ncmc, Mi (6.2 mi from Petoskey). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.