Port Huron, MI Weather & Growing Conditions
Tonight
54°F
Chance Light Rain
A chance of rain. Mostly cloudy. Low around 54, with temperatures rising to around 56 overnight. East northeast wind 5 to 9 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 |
|---|---|---|---|---|
| Tonight | 54°F | Chance Light Rain | 5 to 9 mph ENE | 36% |
| Saturday | 67°F | Chance Light Rain then Chance Showers And Thunderstorms | 5 to 8 mph ESE | 59% |
| Saturday Night | 55°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 8 mph E | 72% |
| Sunday | 65°F | Chance Rain Showers | 6 to 14 mph NE | 36% |
| Sunday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 9 to 14 mph NE | 18% |
| Monday | 64°F | Mostly Cloudy | 13 mph NE | 3% |
| Monday Night | 50°F | Mostly Cloudy | 12 mph ENE | 8% |
| Tuesday | 63°F | Partly Sunny then Slight Chance Rain Showers | 13 mph ENE | 19% |
| Tuesday Night | 51°F | Chance Rain Showers | 13 mph ENE | 44% |
| Wednesday | 63°F | Chance Rain Showers | 12 mph E | 50% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 6 to 10 mph E | 50% |
| Thursday | 66°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph ENE | 21% |
| Thursday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 8 mph NE | 16% |
| Friday | 67°F | Mostly Sunny | 3 to 9 mph NNE | 10% |
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.