Pentwater, MI Weather & Growing Conditions
This Afternoon
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 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 15 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Showers And Thunderstorms | 15 mph S | 36% |
| Tonight | 59°F | Chance Showers And Thunderstorms | 9 to 13 mph SSE | 40% |
| Wednesday | 66°F | Rain Showers | 10 to 15 mph S | 93% |
| Wednesday Night | 46°F | Cloudy then Chance Rain Showers | 9 to 14 mph SSW | 41% |
| Thursday | 54°F | Rain Showers | 9 to 13 mph WSW | 90% |
| Thursday Night | 38°F | Rain Showers | 5 to 9 mph NW | 90% |
| Friday | 51°F | Chance Rain Showers | 13 mph NNE | 42% |
| Friday Night | 34°F | Chance Rain Showers then Mostly Cloudy | 3 to 9 mph N | 32% |
| Saturday | 51°F | Partly Sunny | 3 to 8 mph NW | 9% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph W | 11% |
| Sunday | 54°F | Slight Chance Rain Showers | 6 to 10 mph WNW | 22% |
| Sunday Night | 38°F | Slight Chance Rain Showers | 8 mph NW | 22% |
| Monday | 56°F | Mostly Sunny | 6 to 13 mph W | 11% |
| Monday Night | 41°F | Partly Cloudy | 7 to 10 mph WSW | 8% |
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 Nov 4, 2026.