Otsego, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Otsego, a city in Allegan County, Michigan.
Tonight
52°F
Showers And Thunderstorms Likely
A chance of rain showers before 5am, then showers and thunderstorms likely. Mostly cloudy. Low around 52, with temperatures rising to around 55 overnight. East wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Otsego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Showers And Thunderstorms Likely | 8 mph E | 74% |
| Saturday | 69°F | Showers And Thunderstorms | 7 to 10 mph ESE | 96% |
| Saturday Night | 57°F | Showers And Thunderstorms | 3 to 8 mph ENE | 89% |
| Sunday | 68°F | Rain Showers Likely | 5 to 12 mph NE | 66% |
| Sunday Night | 48°F | Chance Rain Showers | 8 to 12 mph NE | 36% |
| Monday | 64°F | Chance Rain Showers | 13 mph ENE | 29% |
| Monday Night | 45°F | Chance Rain Showers then Mostly Cloudy | 8 to 14 mph ENE | 29% |
| Tuesday | 63°F | Partly Sunny then Slight Chance Rain Showers | 9 to 13 mph ENE | 21% |
| Tuesday Night | 46°F | Slight Chance Rain Showers | 6 to 13 mph NE | 21% |
| Wednesday | 64°F | Slight Chance Rain Showers | 7 to 10 mph NE | 21% |
| Wednesday Night | 47°F | Mostly Cloudy | 3 to 9 mph NE | 10% |
| Thursday | 67°F | Partly Sunny | 3 to 7 mph NNE | 4% |
| Thursday Night | 48°F | Mostly Cloudy | 1 to 6 mph NE | 6% |
| Friday | 71°F | Mostly Sunny | 1 to 7 mph NNE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Otsego (42.458, -85.699). Updated through the day.
Growing snapshot for Otsego
Last spring frost
May 4
First fall frost
Oct 15
Growing season
160 days
Hardiness zone
6a
More local growing data for Otsego: nearby ZIP 49078 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Allegan 5Ne, Mi (8 mi from Otsego). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.