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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Fort Gratiot MI

Freeze Warning April 19, 11:00pm until April 20, 11:00am
Click here for hazard details and duration
Freeze Warning

  • This Afternoon

    This Afternoon: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 48. West wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 48 °F

    Showers

  • Tonight

    Tonight: Rain and snow showers, becoming all snow after 7pm, then gradually ending. Low around 26. North wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. North wind 7 to 10 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. Light east southeast wind becoming south 5 to 9 mph in the evening.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. South wind 14 to 16 mph, with gusts as high as 24 mph.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 48. West wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and snow showers, becoming all snow after 7pm, then gradually ending. Low around 26. North wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Mostly sunny, with a high near 40. North wind 7 to 10 mph.
Monday Night
Partly cloudy, with a low around 30. Light east southeast wind becoming south 5 to 9 mph in the evening.
Tuesday
Partly sunny, with a high near 62. South wind 14 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 51.
Friday
A chance of showers. Partly sunny, with a high near 71.
Friday Night
A chance of showers. Mostly cloudy, with a low around 47.
Saturday
A chance of showers. Mostly cloudy, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Gratiot MI
 43.08°N 82.5°W (Elev. 623 ft)
Last Update:
12:13 pm EDT Apr 19, 2026
Forecast Valid:
1pm EDT Apr 19, 2026-6pm EDT Apr 25, 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