Grand Haven, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grand Haven, a city in Ottawa County, Michigan.
Tonight
52°F
Showers And Thunderstorms
Rain showers likely before 5am, then showers and thunderstorms. Cloudy. Low around 52, with temperatures rising to around 54 overnight. East wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Grand Haven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Showers And Thunderstorms | 8 to 13 mph E | 85% |
| Saturday | 67°F | Showers And Thunderstorms | 14 mph ESE | 95% |
| Saturday Night | 55°F | Showers And Thunderstorms | 10 mph ENE | 82% |
| Sunday | 69°F | Chance Rain Showers | 9 to 14 mph NE | 53% |
| Sunday Night | 51°F | Mostly Cloudy | 13 mph NE | 9% |
| Monday | 65°F | Mostly Cloudy | 13 to 16 mph ENE | 12% |
| Monday Night | 48°F | Mostly Cloudy | 12 to 16 mph ENE | 12% |
| Tuesday | 64°F | Partly Sunny | 12 to 16 mph ENE | 14% |
| Tuesday Night | 49°F | Mostly Cloudy then Slight Chance Rain Showers | 9 to 16 mph ENE | 18% |
| Wednesday | 66°F | Slight Chance Rain Showers then Partly Sunny | 13 mph NE | 18% |
| Wednesday Night | 50°F | Mostly Cloudy | 6 to 12 mph NE | 9% |
| Thursday | 67°F | Partly Sunny | 8 mph NNE | 3% |
| Thursday Night | 52°F | Mostly Cloudy | 5 to 8 mph NNE | 2% |
| Friday | 70°F | Mostly Sunny | 7 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov) for Grand Haven (43.055, -86.219). Updated through the day.
Growing snapshot for Grand Haven
Last spring frost
Apr 30
First fall frost
Oct 24
Growing season
175 days
Hardiness zone
6b
More local growing data for Grand Haven: nearby ZIP 49409 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grand Haven Wwtp, Mi (1.5 mi from Grand Haven). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.