Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fair

52°F

11°C

Humidity 77%
Wind Speed Calm
Barometer 29.80 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 14 Apr 10:55 pm EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

Flood Watch April 14, 11:07pm until April 17, 02:00am
Tornado Watch until April 15, 04:00am
Click here for hazard details and duration
Flood Watch
Tornado Watch
  •  
    Flood Watch April 14, 11:07pm until April 17, 02:00am
    Tornado Watch until April 15, 04:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 55 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm.  High near 70. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm.  Low around 57. South southwest wind around 7 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 67. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 47. Northwest 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: 47 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers after 8am.  Mostly cloudy, with a high near 69.

    High: 69 °F

    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms between 4am and 5am, then a slight chance of showers after 5am. Temperature rising to around 58 by 2am. Southeast wind around 7 mph becoming west southwest after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 70. Southwest wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm. Low around 57. South southwest wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 67. South southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 47. Northwest 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 61.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Showers after 8am. Mostly cloudy, with a high near 69.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 46. Breezy.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 46.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Mostly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Fort Gratiot MI
 43.04°N 82.48°W (Elev. 620 ft)
9:24 pm EDT Apr 14, 2026
11pm EDT Apr 14, 2026-6pm EDT Apr 21, 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