National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fog/Mist

32°F

0°C

Humidity 100%
Wind Speed Calm
Barometer 30.48 in
Dewpoint 32°F (0°C)
Visibility 4.00 mi
Last update 9 Oct 4:36 am EDT
Extended Forecast for

2 Miles SSW Marine City MI

Frost Advisory until October 9, 09:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until October 9, 09:00am

    NOW until 9:00am Thu

    Frost Advisory

  • Overnight

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 61. East wind 3 to 6 mph.

    High: 61 °F

    Patchy Frost
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39. East southeast wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 65. Light southeast wind becoming south southwest 5 to 10 mph in the morning.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 50. South southwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly after 2pm. Partly sunny, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Partly sunny, with a high near 67.

    High: 67 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 38. Light north northeast wind.
Thursday
Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 61. East wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 39. East southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 65. Light southeast wind becoming south southwest 5 to 10 mph in the morning.
Friday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 50. South southwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely, mainly after 2pm. Partly sunny, with a high near 64. Chance of precipitation is 60%.
Saturday Night
Showers likely, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Partly sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 47.
Columbus Day
Mostly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Marine City MI
 42.69°N 82.49°W (Elev. 577 ft)
Last Update:
4:24 am EDT Oct 9, 2025
Forecast Valid:
4am EDT Oct 9, 2025-6pm EDT Oct 15, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation