Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Mostly Cloudy

63°F

17°C

Humidity 88%
Wind Speed S 7 mph
Barometer 29.74 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Apr 6:15 am EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

Flood Watch April 16, 06:36am until April 17, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 16, 06:36am until April 17, 12:00am

    NOW until 12:00am Fri

    Flood Watch

  • Today

    High: 69 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 8pm, then a slight chance of showers between 8pm and 9pm.  Mostly cloudy, with a low around 45. North wind around 6 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 50. South southeast wind 6 to 9 mph, with gusts as high as 18 mph.  Chance of precipitation is 50%.

    Low: 50 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers, mainly between 8am and 2pm.  High near 65. South wind 13 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 2am.  Partly cloudy, with a low around 35. Chance of precipitation is 30%.

    Low: 35 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of rain and snow showers after 8am.  Partly sunny, with a high near 45. Chance of precipitation is 30%.

    High: 45 °F

    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 28.

    Low: 28 °F

    Decreasing
    Clouds

Detailed Forecast

Today
Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 69. South southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely before 8pm, then a slight chance of showers between 8pm and 9pm. Mostly cloudy, with a low around 45. North wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 64. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 50. South southeast wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
Saturday
Showers, mainly between 8am and 2pm. High near 65. South wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers before 2am. Partly cloudy, with a low around 35. Chance of precipitation is 30%.
Sunday
A chance of rain and snow showers after 8am. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 28.
Monday
Sunny, with a high near 45.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 58.
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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 am EDT Apr 16, 2026
6am EDT Apr 16, 2026-6pm EDT Apr 22, 2026
 
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Additional Resources

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Hourly Weather Forecast

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