Hazardous Weather Conditions
Current conditions at
St Clair County International Airport (KPHN)
Lat: 42.91°NLon: 82.53°WElev: 636ft.
Fair
46°F
8°C
| Humidity | 62% |
| Wind Speed | S 5 mph |
| Barometer | 30.17 in |
| Dewpoint | 34°F (1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 44°F (7°C) |
| Last update | 4 Mar 4:55 pm EST |
Extended Forecast for
2 Miles S Fort Gratiot MI
Tonight
Low: 31 °F
Areas Fog
then Slight
Chance Rain
and Areas FogThursday
High: 40 °F
Chance Rain
and Areas Fog
then RainThursday Night
Low: 34 °F
Rain then
Chance RainFriday

High: 55 °F
Mostly Cloudy
Friday Night

Low: 47 °F
Rain Likely
Saturday

High: 62 °F
Rain
Saturday Night

Low: 33 °F
Mostly Cloudy
Sunday

High: 52 °F
Mostly Sunny
Sunday Night

Low: 39 °F
Mostly Clear
Detailed Forecast
Tonight
A slight chance of rain between 4am and 5am. Areas of fog after 10pm. Otherwise, increasing clouds, with a low around 31. Light northeast wind. Chance of precipitation is 20%.
Thursday
Rain, mainly after 1pm. Areas of fog before 10am. High near 40. Northeast wind 5 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain, mainly before 7pm. Low around 34. Northeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Mostly cloudy, with a high near 55. Calm wind becoming south 5 to 8 mph in the morning.
Friday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 47. South southwest wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly before 1pm. High near 62. Chance of precipitation is 80%.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 60.
Monday Night
A chance of rain. Partly cloudy, with a low around 43.
Tuesday
Rain likely. Mostly cloudy, with a high near 55.
Tuesday Night
Rain. Mostly cloudy, with a low around 40.
Wednesday
Rain likely. Mostly cloudy, with a high near 50.
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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 pm EST Mar 4, 2026
5pm EST Mar 4, 2026-6pm EDT Mar 11, 2026



