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

28°F

-2°C

Humidity 86%
Wind Speed Calm
Barometer 30.26 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 25 Mar 5:35 am EDT
Extended Forecast for

3 Miles N Port Huron MI

  • Today

    Today: Mostly cloudy, with a high near 49. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Southwest wind around 9 mph, with gusts as high as 18 mph.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers likely after 2pm. Partly sunny, with a high near 59. South southwest wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Partly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Rain showers likely, possibly mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 26. North wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 26 °F

    Rain/Snow
    Likely

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 30. North wind around 13 mph, with gusts as high as 24 mph.

    High: 30 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 49. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Tonight
Mostly cloudy, with a low around 43. Southwest wind around 9 mph, with gusts as high as 18 mph.
Thursday
Showers likely after 2pm. Partly sunny, with a high near 59. South southwest wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain showers likely, possibly mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 26. North wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 30. North wind around 13 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 22.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 50.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 58.
Monday Night
A chance of rain. Mostly cloudy, with a low around 42.
Tuesday
A chance of rain. Mostly cloudy, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Port Huron MI
 43.01°N 82.42°W (Elev. 577 ft)
Last Update:
4:24 am EDT Mar 25, 2026
Forecast Valid:
5am EDT Mar 25, 2026-6pm EDT Mar 31, 2026
 
Forecast Discussion
 
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Additional Resources

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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