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.

Partly Cloudy

72°F

22°C

Humidity 73%
Wind Speed SW 3 mph
Barometer 29.90 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 23 Aug 12:15 pm EDT
Extended Forecast for

2 Miles WSW Fort Gratiot MI

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Southwest wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 58. West wind around 7 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 74. West wind 6 to 9 mph.

    High: 74 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52. West wind around 7 mph.

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 8am. Mostly sunny, with a high near 68. West northwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

    High: 68 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Southwest wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Tonight
A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 58. West wind around 7 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 74. West wind 6 to 9 mph.
Sunday Night
Partly cloudy, with a low around 52. West wind around 7 mph.
Monday
A chance of showers after 8am. Mostly sunny, with a high near 68. West northwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Fort Gratiot MI
 43.06°N 82.54°W (Elev. 669 ft)
Last Update:
12:13 pm EDT Aug 23, 2025
Forecast Valid:
12pm EDT Aug 23, 2025-6pm EDT Aug 29, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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