Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Partly Cloudy

41°F

5°C

Humidity 28%
Wind Speed SW 6 mph
Barometer 30.44 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 28 Mar 7:15 pm EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. South southwest wind 6 to 8 mph.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 52. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 52 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41. South southwest wind around 8 mph.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 61. Southwest wind 7 to 9 mph.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain, then rain likely and possibly a thunderstorm after 2am.  Mostly cloudy, with a low around 51. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain likely and possibly a thunderstorm before 8am, then a chance of rain between 8am and 2pm, then rain and possibly a thunderstorm after 2pm.  High near 67. Chance of precipitation is 80%.

    High: 67 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm before 8pm, then rain likely.  Low around 34. Chance of precipitation is 80%.

    Low: 34 °F

    Rain

  • Wednesday

    Wednesday: A chance of rain before 8am.  Mostly cloudy, with a high near 39.

    High: 39 °F

    Chance Rain
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. South southwest wind 6 to 8 mph.
Sunday
Mostly cloudy, with a high near 52. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 41. South southwest wind around 8 mph.
Monday
Partly sunny, with a high near 61. Southwest wind 7 to 9 mph.
Monday Night
A chance of rain, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 51. South southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Rain likely and possibly a thunderstorm before 8am, then a chance of rain between 8am and 2pm, then rain and possibly a thunderstorm after 2pm. High near 67. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm before 8pm, then rain likely. Low around 34. Chance of precipitation is 80%.
Wednesday
A chance of rain before 8am. Mostly cloudy, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
A chance of rain and snow after 2pm. Partly sunny, with a high near 41.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 32.
Friday
A chance of rain. Mostly cloudy, with a high near 48.
Friday Night
A chance of rain. Mostly cloudy, with a low around 38.
Saturday
A chance of rain. Mostly cloudy, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Fort Gratiot MI
 43.04°N 82.48°W (Elev. 620 ft)
4:24 pm EDT Mar 28, 2026
7pm EDT Mar 28, 2026-6pm EDT Apr 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database