Pentwater, MI Weather & Growing Conditions
Today
80°F
Sunny
Sunny, with a high near 80. South southwest wind 7 to 13 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 7 to 13 mph SSW | 0% |
| Tonight | 64°F | Mostly Cloudy then Showers And Thunderstorms Likely | 5 to 12 mph SSW | 64% |
| Wednesday | 75°F | Showers And Thunderstorms Likely | 3 to 7 mph W | 68% |
| Wednesday Night | 59°F | Chance Showers And Thunderstorms | 1 to 6 mph NW | 47% |
| Thursday | 77°F | Chance Rain Showers | 2 to 8 mph S | 37% |
| Thursday Night | 59°F | Mostly Clear | 1 to 7 mph SW | 7% |
| Friday | 79°F | Sunny | 2 to 9 mph SSW | 0% |
| Friday Night | 64°F | Mostly Clear | 5 to 8 mph SSW | 7% |
| Saturday | 79°F | Sunny | 6 to 10 mph SSW | 8% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 6 to 9 mph SSW | 39% |
| Sunday | 80°F | Chance Showers And Thunderstorms | 8 to 13 mph SW | 39% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 5 to 10 mph SW | 58% |
| Monday | 79°F | Chance Rain Showers | 5 to 9 mph WSW | 41% |
| Monday Night | 62°F | Chance Rain Showers | 3 to 8 mph NNW | 45% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Pentwater, MI
Last spring frost
May 17
First fall frost
Oct 7
Growing season
144 days
Hardiness zone
6b
Explore more for Pentwater, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Ludington 4 Se, Mi (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.