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.

Overcast

61°F

16°C

Humidity 88%
Wind Speed NW 3 mph
Barometer 30.26 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Sep 4:15 am EDT
Extended Forecast for

3 Miles WNW Port Huron MI

  • Overnight

    Overnight: A chance of showers, mainly before 5am. Cloudy, with a low around 61. Light north wind. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly before 7am. Mostly cloudy, with a high near 72. North northeast wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 72 °F

    Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. North wind 5 to 7 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 70. North northeast wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 70 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Increasing clouds, with a low around 55. North northeast wind 5 to 9 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Showers. High near 66. Chance of precipitation is 90%.

    High: 66 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: Showers. Low around 56. Chance of precipitation is 90%.

    Low: 56 °F

    Showers

  • Sunday

    Sunday: A chance of showers before 2pm. Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers, mainly before 5am. Cloudy, with a low around 61. Light north wind. Chance of precipitation is 30%.
Thursday
A chance of showers, mainly before 7am. Mostly cloudy, with a high near 72. North northeast wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 58. North wind 5 to 7 mph.
Friday
Increasing clouds, with a high near 70. North northeast wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
Increasing clouds, with a low around 55. North northeast wind 5 to 9 mph.
Saturday
Showers. High near 66. Chance of precipitation is 90%.
Saturday Night
Showers. Low around 56. Chance of precipitation is 90%.
Sunday
A chance of showers before 2pm. Mostly cloudy, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Mostly cloudy, with a high near 64.
Monday Night
Mostly cloudy, with a low around 51.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 55.
Wednesday
A chance of showers. Partly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Port Huron MI
 42.99°N 82.49°W (Elev. 627 ft)
Last Update:
4:24 am EDT Sep 17, 2026
Forecast Valid:
4am EDT Sep 17, 2026-6pm EDT Sep 23, 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