Pentwater, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pentwater, a village in Oceana County, Michigan.
Today
80°F
Sunny
Sunny, with a high near 80. South southwest wind 7 to 14 mph, with gusts as high as 24 mph.
7-day forecast for Pentwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 7 to 14 mph SSW | 0% |
| Tonight | 65°F | Showers And Thunderstorms Likely | 5 to 12 mph SSW | 64% |
| Wednesday | 75°F | Showers And Thunderstorms Likely | 5 to 8 mph W | 67% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 1 to 6 mph NW | 48% |
| Thursday | 77°F | Chance Rain Showers | 2 to 8 mph E | 37% |
| Thursday Night | 61°F | Mostly Clear | 1 to 7 mph SW | 7% |
| Friday | 79°F | Sunny | 2 to 9 mph SSW | 0% |
| Friday Night | 65°F | Mostly Clear | 8 mph SSW | 7% |
| Saturday | 77°F | Sunny | 7 to 13 mph SSW | 8% |
| Saturday Night | 67°F | Chance Rain Showers | 8 to 13 mph SSW | 39% |
| Sunday | 76°F | Chance Showers And Thunderstorms | 8 to 14 mph SW | 39% |
| Sunday Night | 65°F | Showers And Thunderstorms Likely | 6 to 13 mph SSW | 58% |
| Monday | 76°F | Chance Rain Showers | 6 to 10 mph WSW | 40% |
| Monday Night | 64°F | Chance Rain Showers | 5 to 10 mph NW | 45% |
Forecast source: National Weather Service (api.weather.gov) for Pentwater (43.780, -86.430). Updated through the day.
Growing snapshot for Pentwater
Last spring frost
May 17
First fall frost
Oct 7
Growing season
144 days
Hardiness zone
6b
More local growing data for Pentwater: nearby ZIP 49449 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ludington 4 Se, Mi (7.8 mi from Pentwater). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.