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.

Rain Fog/Mist

59°F

15°C

Humidity 94%
Wind Speed E 9 mph
Barometer 30.05 in
Dewpoint 57°F (14°C)
Visibility 2.50 mi
Last update 11 Oct 12:16 pm EDT
Extended Forecast for

Port Huron MI

  • This Afternoon

    This Afternoon: A chance of rain before 2pm, then a slight chance of rain after 3pm. Cloudy, with a high near 66. East southeast wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 66 °F

    Chance Rain

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Columbus Day

    Columbus Day: Patchy fog before 11am. Otherwise, partly sunny, with a high near 75. Light southwest wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. South southwest wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Partly Cloudy
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain likely, mainly before 8am. Mostly sunny, with a high near 78. South southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 78 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of rain before 2pm, then a slight chance of rain after 3pm. Cloudy, with a high near 66. East southeast wind 6 to 8 mph. Chance of precipitation is 30%.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 54. Calm wind.
Columbus Day
Patchy fog before 11am. Otherwise, partly sunny, with a high near 75. Light southwest wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. South southwest wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Rain likely, mainly before 8am. Mostly sunny, with a high near 78. South southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 55.
Wednesday
Mostly cloudy, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Partly sunny, with a high near 64.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 49.
Friday
A chance of rain. Mostly cloudy, with a high near 62.
Friday Night
A chance of rain. Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Partly sunny, with a high near 52.
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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:
10:13 am EDT Oct 11, 2026
Forecast Valid:
12pm EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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