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

Port Huron MI

Frost Advisory until April 19, 10:00am
Freeze Warning April 19, 11:00pm until April 20, 11:00am
Click here for hazard details and duration
...
Freeze Warning
  •  
    Frost Advisory until April 19, 10:00am

    NOW until 10:00am Sun

    Frost Advisory

  • Today

    High: 48 °F

    Sunny then
    Showers

  • Tonight

    Tonight: Rain and snow showers, becoming all snow after 7pm, then gradually ending.  Low around 26. North wind 8 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. Northwest wind 6 to 8 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. Calm wind becoming south 5 to 7 mph in the evening.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. South wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Today
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 48. West wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and snow showers, becoming all snow after 7pm, then gradually ending. Low around 26. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Mostly sunny, with a high near 40. Northwest wind 6 to 8 mph.
Monday Night
Partly cloudy, with a low around 31. Calm wind becoming south 5 to 7 mph in the evening.
Tuesday
Mostly sunny, with a high near 62. South wind 10 to 13 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 51.
Friday
A chance of showers. Partly sunny, with a high near 72.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48.
Saturday
A chance of showers. Mostly cloudy, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Huron MI
 42.97°N 82.43°W (Elev. 600 ft)
4:24 am EDT Apr 19, 2026
6am EDT Apr 19, 2026-6pm EDT Apr 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