Port Huron, MI Weather & Growing Conditions
Today
67°F
Chance Rain Showers
A chance of rain showers between 9am and 5pm, then a chance of showers and thunderstorms. Cloudy. High near 67, with temperatures falling to around 64 in the afternoon. East southeast wind 5 to 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Chance Rain Showers | 5 to 8 mph ESE | 42% |
| Tonight | 56°F | Showers And Thunderstorms Likely | 5 to 8 mph ESE | 76% |
| Sunday | 67°F | Rain Showers Likely | 6 to 14 mph NNE | 68% |
| Sunday Night | 52°F | Partly Cloudy | 10 to 15 mph NE | 0% |
| Monday | 62°F | Partly Sunny | 13 mph NE | 0% |
| Monday Night | 49°F | Mostly Cloudy | 8 to 12 mph NE | 2% |
| Tuesday | 64°F | Partly Sunny | 14 mph ENE | 5% |
| Tuesday Night | 50°F | Chance Rain Showers | 10 to 14 mph ENE | 37% |
| Wednesday | 63°F | Chance Rain Showers | 14 mph E | 43% |
| Wednesday Night | 50°F | Chance Rain Showers | 7 to 12 mph E | 36% |
| Thursday | 65°F | Chance Rain Showers | 9 mph ENE | 25% |
| Thursday Night | 50°F | Mostly Cloudy | 5 to 8 mph ENE | 13% |
| Friday | 67°F | Mostly Sunny | 5 to 10 mph NE | 10% |
| Friday Night | 51°F | Partly Cloudy | 3 to 9 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Huron, MI
Last spring frost
Apr 19
First fall frost
Nov 3
Growing season
196 days
Hardiness zone
6b
Explore more for Port Huron, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Port Huron, Mi (2.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.