Grand Haven, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grand Haven, a city in Ottawa County, Michigan.
Today
79°F
Sunny
Sunny, with a high near 79. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.
7-day forecast for Grand Haven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Sunny | 6 to 13 mph SSW | 0% |
| Tonight | 66°F | Partly Cloudy then Chance Rain Showers | 7 to 10 mph SSW | 25% |
| Wednesday | 75°F | Rain Showers Likely | 6 to 9 mph SW | 64% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 to 7 mph W | 75% |
| Thursday | 76°F | Rain Showers Likely | 3 to 7 mph NNW | 64% |
| Thursday Night | 60°F | Partly Cloudy | 2 to 7 mph WSW | 9% |
| Friday | 78°F | Mostly Sunny | 2 to 7 mph SSW | 4% |
| Friday Night | 65°F | Mostly Clear | 6 mph SW | 8% |
| Saturday | 79°F | Mostly Sunny | 6 to 10 mph SSW | 8% |
| Saturday Night | 67°F | Chance Rain Showers | 9 mph SSW | 34% |
| Sunday | 79°F | Chance Showers And Thunderstorms | 9 to 14 mph SW | 34% |
| Sunday Night | 65°F | Chance Rain Showers | 7 to 13 mph SW | 52% |
| Monday | 79°F | Chance Rain Showers | 7 to 10 mph WSW | 43% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 to 9 mph WSW | 51% |
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 Aug 4, 2026.