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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Saint Clair MI

  • Overnight

    Overnight: Mostly cloudy, with a low around 36. Light west northwest wind.

    Low: 36 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: A slight chance of rain before 1pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 55. Light and variable wind. Chance of precipitation is 30%.

    High: 55 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 9pm, then rain likely after 10pm. Mostly cloudy, with a low around 39. North wind 3 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain Likely

  • Thursday

    Thursday: Rain, mainly after 1pm. High near 49. North wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: Rain before 10pm, then rain and snow. Low around 31. North northwest wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow

  • Friday

    Friday: Rain and snow, becoming all rain after 1pm. High near 43. Chance of precipitation is 80%.

    High: 43 °F

    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.

    Low: 29 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 36. Light west northwest wind.
Veterans Day
A slight chance of rain before 1pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 55. Light and variable wind. Chance of precipitation is 30%.
Wednesday Night
A chance of rain before 9pm, then rain likely after 10pm. Mostly cloudy, with a low around 39. North wind 3 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, mainly after 1pm. High near 49. North wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain before 10pm, then rain and snow. Low around 31. North northwest wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
Rain and snow, becoming all rain after 1pm. High near 43. Chance of precipitation is 80%.
Friday Night
A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 46.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Clair MI
 42.82°N 82.51°W (Elev. 600 ft)
Last Update:
10:13 pm EST Nov 10, 2026
Forecast Valid:
1am EST Nov 11, 2026-6pm EST Nov 17, 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