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

43°F

6°C

Humidity 53%
Wind Speed NE 3 mph
Barometer 30.48 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 11 Apr 10:55 am EDT
Extended Forecast for

Port Huron MI

  • Today

    Today: Sunny, with a high near 46. North northeast wind around 7 mph.

    High: 46 °F

    Sunny

  • Tonight

    Tonight: A chance of showers after 2am. Increasing clouds, with a low around 35. East northeast wind around 5 mph becoming light and variable. Chance of precipitation is 30%.

    Low: 35 °F

    Mostly Clear
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 2pm. Mostly cloudy, with a high near 66. Southeast wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 66 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 59. South southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers, mainly before 8am. High near 73. West southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 46. North northeast wind around 7 mph.
Tonight
A chance of showers after 2am. Increasing clouds, with a low around 35. East northeast wind around 5 mph becoming light and variable. Chance of precipitation is 30%.
Sunday
A chance of showers before 2pm. Mostly cloudy, with a high near 66. Southeast wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Sunday Night
Showers, mainly after 2am. Low around 59. South southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, mainly before 8am. High near 73. West southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60.
Wednesday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 75.
Wednesday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54.
Thursday
A chance of showers. Partly sunny, with a high near 71.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 52.
Friday
A chance of showers. Mostly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Huron MI
 42.97°N 82.43°W (Elev. 600 ft)
Last Update:
4:25 am EDT Apr 11, 2026
Forecast Valid:
11am EDT Apr 11, 2026-6pm EDT Apr 17, 2026
 
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