Pentwater, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pentwater, a village in Oceana County, Michigan.
This Afternoon
68°F
Chance Showers And Thunderstorms
A chance of rain showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a slight chance of showers and thunderstorms. Mostly cloudy. High near 68, with temperatures falling to around 66 in the afternoon. South wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
7-day forecast for Pentwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Showers And Thunderstorms | 16 mph S | 37% |
| Tonight | 60°F | Chance Showers And Thunderstorms | 13 mph SSE | 41% |
| Wednesday | 65°F | Rain Showers | 12 to 15 mph S | 93% |
| Wednesday Night | 47°F | Cloudy then Chance Rain Showers | 14 mph SSW | 40% |
| Thursday | 54°F | Rain Showers | 10 to 14 mph WSW | 90% |
| Thursday Night | 40°F | Rain Showers | 6 to 13 mph NW | 90% |
| Friday | 51°F | Chance Rain Showers | 13 mph NNE | 43% |
| Friday Night | 38°F | Chance Rain Showers then Mostly Cloudy | 6 to 12 mph N | 33% |
| Saturday | 50°F | Partly Sunny | 6 to 9 mph NW | 8% |
| Saturday Night | 39°F | Partly Cloudy | 7 mph W | 11% |
| Sunday | 53°F | Slight Chance Rain Showers | 8 to 12 mph WNW | 22% |
| Sunday Night | 41°F | Slight Chance Rain Showers | 10 mph NW | 22% |
| Monday | 55°F | Mostly Sunny | 8 to 15 mph W | 11% |
| Monday Night | 44°F | Partly Cloudy | 13 mph WSW | 8% |
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 Nov 3, 2026.