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

Hazardous Weather Conditions

Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fair

19°C

66°F

Humidity 88%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 17°C (63°F)
Visibility 11 km
Last update 15 Jul 10:56 pm EDT
Extended Forecast for

Port Huron MI

  • Tonight

    Tonight: Mostly clear, with a low around 19. South wind 5 to 8 km/h.

    Low: 19 °C

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. South wind 5 to 13 km/h. Chance of precipitation is 40%.

    High: 31 °C

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 22. South wind 8 to 10 km/h. Chance of precipitation is 30%.

    Low: 22 °C

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers likely after 5pm. Mostly cloudy, with a high near 28. West southwest wind 10 to 18 km/h, with gusts as high as 32 km/h. Chance of precipitation is 70%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 28 °C

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 16. North wind 13 to 16 km/h, with gusts as high as 32 km/h.

    Low: 16 °C

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 23.

    High: 23 °C

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 14.

    Low: 14 °C

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Partly sunny, with a high near 27.

    High: 27 °C

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 18.

    Low: 18 °C

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 19. South wind 5 to 8 km/h.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. South wind 5 to 13 km/h. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 22. South wind 8 to 10 km/h. Chance of precipitation is 30%.
Thursday
Showers likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers likely after 5pm. Mostly cloudy, with a high near 28. West southwest wind 10 to 18 km/h, with gusts as high as 32 km/h. Chance of precipitation is 70%. New rainfall amounts between 2.5 and 5 mm possible.
Thursday Night
Mostly cloudy, with a low around 16. North wind 13 to 16 km/h, with gusts as high as 32 km/h.
Friday
Sunny, with a high near 23.
Friday Night
Partly cloudy, with a low around 14.
Saturday
A chance of showers after 2pm. Partly sunny, with a high near 27.
Saturday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 18.
Sunday
A chance of showers before 2pm. Partly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Mostly sunny, with a high near 27.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Huron MI
 42.97°N 82.43°W (Elev. 600 m)
Last Update:
5:13 pm EDT Jul 15, 2025
Forecast Valid:
11pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
 
Forecast Discussion
 
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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