Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Overcast

64°F

18°C

Humidity 100%
Wind Speed NW 6 mph
Barometer 29.97 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 20 Aug 1:35 am EDT
Extended Forecast for

Casco MI

  • Overnight

    Overnight: Cloudy, with a low around 64. North northeast wind 3 to 5 mph.

    Low: 64 °F

    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 77. North northeast wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 77 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58. Northeast wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Northeast wind 6 to 10 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. North northeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
Cloudy, with a low around 64. North northeast wind 3 to 5 mph.
Wednesday
Partly sunny, with a high near 77. North northeast wind 8 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 58. Northeast wind 5 to 10 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 78. Northeast wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 57. North northeast wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Partly sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Casco MI
 42.74°N 82.67°W (Elev. 630 ft)
9:35 pm EDT Aug 19, 2025
1am EDT Aug 20, 2025-6pm EDT Aug 26, 2025
 
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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