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.

Heavy Rain

50°F

10°C

Humidity 94%
Wind Speed S 9 mph
Barometer 29.96 in
Dewpoint 48°F (9°C)
Visibility 4.00 mi
Wind Chill46°F (8°C)
Last update 6 Mar 10:35 pm EST
Extended Forecast for

2 Miles S Fort Gratiot MI

  • Tonight

    Tonight: Scattered showers and thunderstorms. Patchy dense fog. Otherwise, mostly cloudy, with a temperature rising to around 54 by 1am. South southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Low: 50 °F⇑

    Scattered
    T-storms and
    Patchy Dense
    Fog

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 7am. Patchy fog before 1pm. High near 65. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35. West wind 9 to 15 mph, with gusts as high as 26 mph.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 54. Southwest wind 9 to 16 mph, with gusts as high as 29 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41. South southwest wind around 10 mph, with gusts as high as 22 mph.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain after 1pm. Partly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Rain

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Patchy dense fog. Otherwise, mostly cloudy, with a temperature rising to around 54 by 1am. South southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Saturday
Showers, with thunderstorms also possible after 7am. Patchy fog before 1pm. High near 65. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Mostly cloudy, with a low around 35. West wind 9 to 15 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 54. Southwest wind 9 to 16 mph, with gusts as high as 29 mph.
Sunday Night
Partly cloudy, with a low around 41. South southwest wind around 10 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 38.
Tuesday
A chance of rain after 1pm. Partly sunny, with a high near 48.
Tuesday Night
Rain. Mostly cloudy, with a low around 33.
Wednesday
Rain likely, mainly before 1pm. Cloudy, with a high near 40.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 23.
Thursday
Sunny, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
A chance of rain. Mostly cloudy, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Fort Gratiot MI
 43.04°N 82.48°W (Elev. 620 ft)
Last Update:
3:35 pm EST Mar 6, 2026
Forecast Valid:
10pm EST Mar 6, 2026-6pm EDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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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