Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Overcast

37°F

3°C

Humidity 81%
Wind Speed N 7 mph
Barometer 29.90 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 10 Mar 9:55 pm EDT
Extended Forecast for

Casco MI

Severe T-storm Watch until March 11, 03:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until March 11, 03:00am

    NOW until 3:00am Wed

    Severe T-storm Watch

  • Tonight

    Low: 42 °F

    Chance
    T-storms then
    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 4pm, then a chance of rain.  High near 53. Southeast wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. Blustery, with a west northwest wind around 18 mph, with gusts as high as 31 mph.

    Low: 28 °F

    Mostly Cloudy
    and Blustery

  • Thursday

    Thursday: Mostly sunny, with a high near 41. West northwest wind around 14 mph, with gusts as high as 22 mph.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain and snow after 2am.  Mostly cloudy, with a low around 31. West wind 5 to 9 mph becoming south southeast after midnight.  Chance of precipitation is 50%.

    Low: 31 °F

    Partly Cloudy
    then Chance
    Rain/Snow

  • Friday

    Friday: Rain likely before 2pm, then a chance of rain and snow.  Mostly cloudy, with a high near 43. Breezy.  Chance of precipitation is 70%.

    High: 43 °F

    Breezy. Rain
    Likely then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: A chance of rain and snow before 8pm.  Partly cloudy, with a low around 26. Breezy.  Chance of precipitation is 30%.

    Low: 26 °F

    Chance
    Rain/Snow and
    Breezy then
    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

Detailed Forecast

Tonight
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 2am. Temperature rising to around 48 by 5am. Northeast wind 5 to 8 mph becoming southeast after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Rain and possibly a thunderstorm before 4pm, then a chance of rain. High near 53. Southeast wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 28. Blustery, with a west northwest wind around 18 mph, with gusts as high as 31 mph.
Thursday
Mostly sunny, with a high near 41. West northwest wind around 14 mph, with gusts as high as 22 mph.
Thursday Night
A chance of rain and snow after 2am. Mostly cloudy, with a low around 31. West wind 5 to 9 mph becoming south southeast after midnight. Chance of precipitation is 50%.
Friday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 70%.
Friday Night
A chance of rain and snow before 8pm. Partly cloudy, with a low around 26. Breezy. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 38.
Saturday Night
A chance of snow between 8pm and 2am, then rain and snow likely. Mostly cloudy, with a low around 31.
Sunday
Rain and snow likely before 2pm, then rain. Cloudy, with a high near 46.
Sunday Night
Rain and snow. Mostly cloudy, with a low around 22.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 28. Blustery.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Casco MI
 42.74°N 82.67°W (Elev. 630 ft)
8:24 pm EDT Mar 10, 2026
10pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
 
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Additional Resources

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