National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fair

70°F

21°C

Humidity 83%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 14 Jul 8:55 pm EDT
Extended Forecast for

Port Huron MI

  • Tonight

    Tonight: Widespread haze before midnight. Mostly clear, with a low around 66. Light and variable wind.

    Low: 66 °F

    Haze then
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. South wind 3 to 5 mph.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 86. South wind 3 to 7 mph. Chance of precipitation is 50%.

    High: 86 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers. Partly cloudy, with a low around 72. South wind around 6 mph. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 64. Chance of precipitation is 80%.

    Low: 64 °F

    T-storms then
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread haze before midnight. Mostly clear, with a low around 66. Light and variable wind.
Tuesday
Sunny, with a high near 88. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 67. South wind 3 to 5 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 86. South wind 3 to 7 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 72. South wind around 6 mph. Chance of precipitation is 40%.
Thursday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 82. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 64. Chance of precipitation is 80%.
Friday
Partly sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 60.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 66.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 81.
Sunday Night
A chance of thunderstorms. Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Huron MI
 42.97°N 82.43°W (Elev. 600 ft)
Last Update:
5:13 pm EDT Jul 14, 2025
Forecast Valid:
9pm EDT Jul 14, 2025-6pm EDT Jul 21, 2025
 
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