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

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Partly Cloudy

68°F

20°C

Humidity 69%
Wind Speed N 8 mph
Barometer 30.29 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 18 Sep 10:35 am EDT
Extended Forecast for

2 Miles NNE Fort Gratiot MI

  • Today

    Today: Mostly sunny, with a high near 66. North northeast wind 14 to 17 mph, with gusts as high as 21 mph.

    High: 66 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. Breezy, with a north northeast wind 13 to 21 mph.

    Low: 54 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Saturday

    Saturday: A chance of showers before 4pm. Mostly cloudy, with a high near 66. East southeast wind around 10 mph. Chance of precipitation is 50%.

    High: 66 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers after 8pm. Cloudy, with a low around 54. East wind 11 to 13 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 2pm. Mostly cloudy, with a high near 64. Breezy, with a northeast wind 14 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 64 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51. Windy.

    Low: 51 °F

    Mostly Cloudy
    and Windy

  • Monday

    Monday: Mostly cloudy, with a high near 62. Breezy.

    High: 62 °F

    Mostly Cloudy
    and Breezy

  • Monday Night

    Monday Night: Cloudy, with a low around 50. Windy.

    Low: 50 °F

    Cloudy and
    Windy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 61. Breezy.

    High: 61 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 66. North northeast wind 14 to 17 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, with a low around 54. Breezy, with a north northeast wind 13 to 21 mph.
Saturday
A chance of showers before 4pm. Mostly cloudy, with a high near 66. East southeast wind around 10 mph. Chance of precipitation is 50%.
Saturday Night
A chance of showers after 8pm. Cloudy, with a low around 54. East wind 11 to 13 mph. Chance of precipitation is 30%.
Sunday
A chance of showers before 2pm. Mostly cloudy, with a high near 64. Breezy, with a northeast wind 14 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 51. Windy.
Monday
Mostly cloudy, with a high near 62. Breezy.
Monday Night
Cloudy, with a low around 50. Windy.
Tuesday
Mostly cloudy, with a high near 61. Breezy.
Tuesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 51. Windy.
Wednesday
A chance of showers. Partly sunny, with a high near 62. Breezy.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 52. Breezy.
Thursday
Mostly cloudy, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Fort Gratiot MI
 43.1°N 82.47°W (Elev. 577 ft)
Last Update:
4:24 am EDT Sep 18, 2026
Forecast Valid:
10am EDT Sep 18, 2026-6pm EDT Sep 24, 2026
 
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