Hazardous Weather Conditions
Current conditions at
St Clair County International Airport (KPHN)
Lat: 42.91°NLon: 82.53°WElev: 636ft.
Freezing Fog
28°F
-2°C
| Humidity | 93% |
| Wind Speed | S 5 mph |
| Barometer | 30.26 in |
| Dewpoint | 27°F (-3°C) |
| Visibility | 0.25 mi |
| Wind Chill | 22°F (-6°C) |
| Last update | 4 Mar 6:36 am EST |
Extended Forecast for
2 Miles S Fort Gratiot MI
Dense Fog Advisory until March 4, 10:00am
NOW until 10:00am Wed
Dense Fog Advisory
Today
High: 45 °F
Areas Fog
then SunnyTonight
Low: 31 °F
Mostly Cloudy
then Slight
Chance
Rain/Freezing
RainThursday
High: 42 °F
Chance Rain
then RainThursday Night

Low: 36 °F
Chance Rain
Friday

High: 56 °F
Mostly Cloudy
Friday Night

Low: 50 °F
Rain Likely
Saturday

High: 62 °F
Rain
Saturday Night

Low: 33 °F
Partly Cloudy
Detailed Forecast
Today
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 45. Calm wind becoming southeast around 5 mph.
Tonight
A slight chance of rain before 3am, then a slight chance of freezing rain between 3am and 4am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 31. Calm wind. Chance of precipitation is 20%.
Thursday
Rain, mainly after 1pm. High near 42. East northeast wind 5 to 8 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 36. East northeast wind 3 to 6 mph. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 56. Light south southeast wind becoming south 5 to 9 mph in the morning.
Friday Night
Rain likely and possibly a thunderstorm before 10pm, then rain likely between 10pm and 4am, then rain likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Saturday
Rain and possibly a thunderstorm. High near 62. Chance of precipitation is 80%.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 47.
Tuesday
A chance of rain. Partly sunny, with a high near 62.
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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)
3:24 am EST Mar 4, 2026
6am EST Mar 4, 2026-6pm EDT Mar 10, 2026



