Current conditions at
St Clair County International Airport (KPHN)
Lat: 42.91°NLon: 82.53°WElev: 636ft.
Freezing Fog
25°F
-4°C
| Humidity | 93% |
| Wind Speed | Calm |
| Barometer | 30.22 in |
| Dewpoint | 23°F (-5°C) |
| Visibility | 0.50 mi |
| Last update | 4 Mar 12:55 am EST |
Extended Forecast for
2 Miles S Fort Gratiot MI
Overnight

Low: 25 °F
Patchy Fog
Wednesday
High: 46 °F
Areas Fog
then SunnyWednesday Night

Low: 31 °F
Mostly Cloudy
Thursday
High: 44 °F
Chance Rain
then RainThursday Night

Low: 37 °F
Chance Rain
Friday
High: 53 °F
Cloudy then
Chance RainFriday Night

Low: 47 °F
Rain Likely
Saturday

High: 62 °F
Rain
Saturday Night

Low: 35 °F
Mostly Cloudy
Detailed Forecast
Overnight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 25. Calm wind.
Wednesday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 46. Calm wind becoming east around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 31. Calm wind.
Thursday
Rain, mainly after 1pm. High near 44. East wind 3 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A chance of rain before 1am. Cloudy, with a low around 37. East northeast wind 3 to 6 mph. Chance of precipitation is 50%.
Friday
A chance of rain after 1pm. Mostly cloudy, with a high near 53. Chance of precipitation is 30%.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Saturday
Rain, mainly before 1pm. Mostly cloudy, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 43.
Tuesday
A chance of rain. Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST
Point Forecast:
2 Miles S Fort Gratiot MI
43.04°N 82.48°W (Elev. 620 ft)
43.04°N 82.48°W (Elev. 620 ft)
12:35 am EST Mar 4, 2026
1am EST Mar 4, 2026-6pm EDT Mar 10, 2026


