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.

Fair

64°F

18°C

Humidity 88%
Wind Speed Calm
Barometer 29.86 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 27 Aug 4:15 am EDT
Extended Forecast for

2 Miles N Fort Gratiot MI

  • Today

    Today: A slight chance of showers after 3pm. Mostly sunny, with a high near 77. West northwest wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before midnight. Partly cloudy, with a low around 60. North northeast wind around 7 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 74. Northeast wind 6 to 9 mph.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. East northeast wind around 6 mph becoming light and variable after midnight.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Southwest wind 5 to 7 mph.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers before 2pm. Mostly cloudy, with a high near 84.

    High: 84 °F

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers after 3pm. Mostly sunny, with a high near 77. West northwest wind 6 to 8 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers before midnight. Partly cloudy, with a low around 60. North northeast wind around 7 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 74. Northeast wind 6 to 9 mph.
Friday Night
Mostly clear, with a low around 58. East northeast wind around 6 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 79. Southwest wind 5 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 65.
Sunday
Partly sunny, with a high near 81.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 67.
Monday
A chance of showers before 2pm. Mostly cloudy, with a high near 84.
Monday Night
A chance of showers after 2am. Mostly cloudy, with a low around 68.
Tuesday
A chance of showers. Mostly sunny, with a high near 85.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 67.
Wednesday
A chance of showers. Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Fort Gratiot MI
 43.1°N 82.5°W (Elev. 614 ft)
Last Update:
3:35 am EDT Aug 27, 2026
Forecast Valid:
4am EDT Aug 27, 2026-6pm EDT Sep 2, 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