Pearl Beach, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pearl Beach, a community in St. Clair County, Michigan.
Tonight
54°F
Mostly Cloudy then Slight Chance Light Rain
A slight chance of rain after 1am. Mostly cloudy, with a low around 54. Northeast wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Pearl Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Cloudy then Slight Chance Light Rain | 5 to 9 mph NE | 23% |
| Saturday | 69°F | Chance Light Rain then Chance Showers And Thunderstorms | 5 to 8 mph ESE | 70% |
| Saturday Night | 54°F | Chance Showers And Thunderstorms | 5 to 8 mph E | 81% |
| Sunday | 68°F | Chance Rain Showers | 6 to 13 mph NNE | 47% |
| Sunday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 8 to 12 mph NE | 34% |
| Monday | 66°F | Mostly Cloudy | 12 mph NE | 8% |
| Monday Night | 49°F | Mostly Cloudy | 12 mph NE | 11% |
| Tuesday | 65°F | Slight Chance Rain Showers | 14 mph NE | 19% |
| Tuesday Night | 51°F | Chance Rain Showers | 13 mph ENE | 49% |
| Wednesday | 64°F | Chance Rain Showers | 13 mph ENE | 53% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 6 to 10 mph ENE | 53% |
| Thursday | 67°F | Slight Chance Showers And Thunderstorms | 9 mph NE | 24% |
| Thursday Night | 52°F | Mostly Cloudy | 3 to 7 mph NNE | 14% |
| Friday | 69°F | Partly Sunny | 3 to 8 mph NNE | 11% |
Forecast source: National Weather Service (api.weather.gov) for Pearl Beach (42.632, -82.586). Updated through the day.
Growing snapshot for Pearl Beach
Last spring frost
May 3
First fall frost
Oct 18
Growing season
167 days
Hardiness zone
6b
More local growing data for Pearl Beach: nearby ZIP 48001 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Algonac Wwtp, Mi (2.5 mi from Pearl Beach). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.