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.

Overcast

32°F

0°C

Humidity 55%
Wind Speed NW 17 G 25 mph
Barometer 29.95 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 14 Mar 4:15 am EDT
Extended Forecast for

4 Miles S Port Sanilac MI

  • Today

    Today: Mostly sunny, with a high near 34. Breezy, with a northwest wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 34 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Tonight

    Tonight: Snow, mainly after 2am. Low around 28. East southeast wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 28 °F

    Mostly Cloudy
    then Snow

  • Sunday

    Sunday: A chance of snow, freezing rain, and sleet before 11am, then a chance of rain between 11am and 2pm. Mostly cloudy, with a high near 54. Breezy, with a south southeast wind 17 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

    High: 54 °F

    Breezy.
    Chance Wintry
    Mix then
    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 39. Breezy, with a south wind 20 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Breezy.
    Chance Rain
    then Rain
    Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 50. Breezy, with a southwest wind 20 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain Likely
    and Breezy

  • Monday Night

    Monday Night: A chance of snow between 8pm and 2am. Mostly cloudy, with a low around 14. Breezy. Chance of precipitation is 30%.

    Low: 14 °F

    Chance Snow
    and Breezy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 24. Blustery.

    High: 24 °F

    Mostly Cloudy
    and Blustery

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow. Mostly cloudy, with a high near 34.

    High: 34 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 34. Breezy, with a northwest wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 31 mph.
Tonight
Snow, mainly after 2am. Low around 28. East southeast wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Sunday
A chance of snow, freezing rain, and sleet before 11am, then a chance of rain between 11am and 2pm. Mostly cloudy, with a high near 54. Breezy, with a south southeast wind 17 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 39. Breezy, with a south wind 20 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 50. Breezy, with a southwest wind 20 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A chance of snow between 8pm and 2am. Mostly cloudy, with a low around 14. Breezy. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 24. Blustery.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
A chance of snow. Mostly cloudy, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Port Sanilac MI
 43.37°N 82.56°W (Elev. 650 ft)
Last Update:
4:13 am EDT Mar 14, 2026
Forecast Valid:
4am EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation