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

48°F

9°C

Humidity 54%
Wind Speed N 9 mph
Barometer 30.31 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 21 May 8:35 pm EDT
Extended Forecast for

2 Miles NNW Port Huron MI

  • Tonight

    Tonight: Partly cloudy, with a low around 43. East northeast wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 66. East wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely after 2am. Cloudy, with a low around 49. East wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Cloudy then
    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 62. East southeast wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 2am. Cloudy, with a low around 49. East southeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 49 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 71.

    High: 71 °F

    Mostly Cloudy

  • Sunday Night

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

    Low: 52 °F

    Mostly Cloudy

  • Memorial Day

    Memorial Day: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. East northeast wind 5 to 10 mph, with gusts as high as 18 mph.
Friday
Partly sunny, with a high near 66. East wind 10 to 13 mph, with gusts as high as 21 mph.
Friday Night
Showers likely after 2am. Cloudy, with a low around 49. East wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers. High near 62. East southeast wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
A chance of showers before 2am. Cloudy, with a low around 49. East southeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Sunday
Mostly cloudy, with a high near 71.
Sunday Night
Mostly cloudy, with a low around 52.
Memorial Day
Partly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Port Huron MI
 42.99°N 82.43°W (Elev. 600 ft)
Last Update:
4:24 pm EDT May 21, 2026
Forecast Valid:
8pm EDT May 21, 2026-6pm EDT May 28, 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