National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fair

30°F

-1°C

Humidity 86%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 27°F (-3°C)
Visibility 7.00 mi
Last update 19 Mar 11:55 pm EDT
Extended Forecast for

Port Huron MI

  • Overnight

    Overnight: A slight chance of rain after 5am. Mostly cloudy, with a low around 34. South southeast wind 3 to 6 mph. Chance of precipitation is 10%.

    Low: 34 °F

    Slight Chance
    Rain

  • Friday

    Friday: A chance of rain before 2pm. Mostly cloudy, with a high near 53. South southwest wind around 9 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    High: 53 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. North wind 3 to 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 48. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 48 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. South wind around 6 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 8am. Mostly cloudy, with a high near 54. Chance of precipitation is 50%.

    High: 54 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of rain after 5am. Mostly cloudy, with a low around 34. South southeast wind 3 to 6 mph. Chance of precipitation is 10%.
Friday
A chance of rain before 2pm. Mostly cloudy, with a high near 53. South southwest wind around 9 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Friday Night
Mostly cloudy, with a low around 33. North wind 3 to 6 mph.
Saturday
Mostly cloudy, with a high near 48. Calm wind becoming south 5 to 7 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 38. South wind around 6 mph.
Sunday
A chance of rain after 8am. Mostly cloudy, with a high near 54. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
A chance of rain. Mostly cloudy, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Huron MI
 42.97°N 82.43°W (Elev. 600 ft)
Last Update:
7:24 pm EDT Mar 19, 2026
Forecast Valid:
12am EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation