Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fair

75°F

24°C

Humidity 100%
Wind Speed S 3 mph
Barometer 30.08 in
Dewpoint 75°F (24°C)
Visibility 7.00 mi
Last update 28 Jul 8:35 am EDT
Extended Forecast for

3 Miles N Port Huron MI

Heat Advisory July 28, 10:00am until July 28, 10:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny, with a high near 90. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 68. South southwest wind around 5 mph becoming calm  after midnight.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 84. North wind 6 to 8 mph.  Chance of precipitation is 40%.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 68. North wind around 6 mph.  Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 76. North wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 90. Calm wind becoming south southwest 5 to 9 mph in the morning.
Tonight
Partly cloudy, with a low around 68. South southwest wind around 5 mph becoming calm after midnight.
Tuesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. North wind 6 to 8 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. North wind around 6 mph. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 76. North wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 73.
Friday Night
Clear, with a low around 58.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Port Huron MI
 43.01°N 82.42°W (Elev. 577 ft)
5:13 am EDT Jul 28, 2025
8am EDT Jul 28, 2025-6pm EDT Aug 3, 2025
 
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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