


Current conditions at
St Clair County International Airport (KPHN)
Lat: 42.91°NLon: 82.53°WElev: 636ft.
Fair
59°F
15°C
Humidity | 88% |
Wind Speed | Calm |
Barometer | 30.22 in |
Dewpoint | 55°F (13°C) |
Visibility | 10.00 mi |
Last update | 11 Sep 8:55 pm EDT |
Extended Forecast for
3 Miles SE Fort Gratiot MI
Tonight
Low: 54 °F
Mostly Clear
then Patchy
FogFriday
High: 75 °F
Patchy Fog
then SunnyFriday Night
Low: 58 °F
Partly Cloudy
Saturday
High: 78 °F
Partly Sunny
Saturday Night
Low: 60 °F
Partly Cloudy
Sunday
High: 78 °F
Mostly Sunny
Sunday Night
Low: 59 °F
Mostly Clear
Monday
High: 80 °F
Sunny
Monday Night
Low: 58 °F
Mostly Clear
Detailed Forecast
Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 54. North northeast wind 5 to 8 mph.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming east northeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 58. East wind around 6 mph becoming south southwest after midnight.
Saturday
Partly sunny, with a high near 78. West wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 60. South southeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 59.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SE Fort Gratiot MI
43.03°N 82.45°W (Elev. 597 ft)
43.03°N 82.45°W (Elev. 597 ft)
5:13 pm EDT Sep 11, 2025
8pm EDT Sep 11, 2025-6pm EDT Sep 18, 2025