Hazardous Weather Conditions

Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Partly Cloudy

66°F

19°C

Humidity 78%
Wind Speed W 5 mph
Barometer 29.82 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 22 Aug 6:55 pm EDT
Extended Forecast for

3 Miles SE Fort Gratiot MI

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 59. West northwest wind 9 to 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 5pm.  Mostly cloudy, with a high near 70. Northwest wind 14 to 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Northwest wind around 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 70. West wind around 15 mph, with gusts as high as 24 mph.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. West northwest wind around 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 8pm.  Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 59. West northwest wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
Sunday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 70. Northwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 56. Northwest wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 70. West wind around 15 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 56. West northwest wind around 6 mph.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 65.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 79.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Fort Gratiot MI
 43.03°N 82.45°W (Elev. 597 ft)
4:24 pm EDT Aug 22, 2026
7pm EDT Aug 22, 2026-6pm EDT Aug 29, 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