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 73%
Wind Speed Calm
Barometer 29.88 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 18 Aug 11:35 pm EDT
Extended Forecast for

3 Miles W Marysville MI

  • Tonight

    Tonight: A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 62. West southwest wind around 5 mph becoming calm  after midnight.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers before 8am.  Mostly sunny, with a high near 77. Calm wind becoming north around 6 mph in the morning.  Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 79. Calm wind.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 78.

    High: 78 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm.  Mostly cloudy, with a low around 56.

    Low: 56 °F

    Showers
    Likely then
    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 62. West southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers before 8am. Mostly sunny, with a high near 77. Calm wind becoming north around 6 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 55. Calm wind.
Thursday
Sunny, with a high near 79. Calm wind.
Thursday Night
Mostly clear, with a low around 56. Calm wind.
Friday
Mostly sunny, with a high near 81.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 78.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 56.
Sunday
A chance of showers after 2pm. Mostly sunny, with a high near 76.
Sunday Night
A chance of showers. Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Marysville MI
 42.91°N 82.53°W (Elev. 646 ft)
4:24 pm EDT Aug 18, 2026
11pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026
 
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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