Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fog

43°F

6°C

Humidity 93%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 41°F (5°C)
Visibility 0.50 mi
Last update 17 Apr 6:15 am EDT
Extended Forecast for

4 Miles N Port Huron MI

Dense Fog Advisory until April 17, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until April 17, 10:00am

    NOW until 10:00am Fri

    Dense Fog Advisory

  • Today

    High: 64 °F

    Dense Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am.  Increasing clouds, with a low around 50. South southeast wind 8 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Partly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm.  Temperature rising to near 62 by 11am, then falling to around 53 during the remainder of the day. South wind around 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 2am.  Mostly cloudy, with a low around 35. West northwest wind 10 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%.

    Low: 35 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of rain and snow showers after 2pm.  Partly sunny, with a high near 44. West wind 10 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%.

    High: 44 °F

    Mostly Sunny
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of snow showers before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Today
Widespread dense fog, mainly before 8am. Otherwise, partly sunny, with a high near 64. Calm wind becoming east southeast around 5 mph in the afternoon.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 50. South southeast wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm. Temperature rising to near 62 by 11am, then falling to around 53 during the remainder of the day. South wind around 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers before 2am. Mostly cloudy, with a low around 35. West northwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday
A chance of rain and snow showers after 2pm. Partly sunny, with a high near 44. West wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Sunday Night
A chance of snow showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 41.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Port Huron MI
 43.03°N 82.45°W (Elev. 597 ft)
4:24 am EDT Apr 17, 2026
6am EDT Apr 17, 2026-6pm EDT Apr 23, 2026
 
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Additional Resources

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