Current conditions at
St Clair County International Airport (KPHN)
Lat: 42.91°NLon: 82.53°WElev: 636ft.
Fair
37°F
3°C
| Humidity | 75% |
| Wind Speed | Calm |
| Barometer | 30.10 in |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Last update | 30 Mar 12:15 am EDT |
Extended Forecast for
2 Miles S Fort Gratiot MI
Overnight

Low: 40 °F
Mostly Clear
Monday

High: 62 °F
Partly Sunny
Monday Night
Low: 49 °F
Chance Rain
then Rain
LikelyTuesday

High: 68 °F
Rain
Tuesday Night

Low: 36 °F
Rain
Wednesday
High: 42 °F
Chance Rain
then Mostly
CloudyWednesday Night
Low: 32 °F
Mostly Cloudy
then Chance
RainThursday

High: 46 °F
Rain
Thursday Night

Low: 37 °F
Rain
Detailed Forecast
Overnight
Mostly clear, with a low around 40. South southwest wind around 8 mph.
Monday
Partly sunny, with a high near 62. Southwest wind around 8 mph.
Monday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 49. South southwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely and possibly a thunderstorm before 2pm, then rain between 2pm and 5pm, then rain and possibly a thunderstorm after 5pm. High near 68. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Rain and possibly a thunderstorm. Low around 36. Southwest wind around 11 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
A chance of rain before 8am. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
Wednesday Night
A chance of rain after 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Thursday
Rain, mainly after 8am. Mostly cloudy, with a high near 46.
Thursday Night
Rain. Cloudy, with a low around 37.
Friday
A chance of rain before 2pm. Mostly cloudy, with a high near 52.
Friday Night
A chance of rain. Mostly cloudy, with a low around 36.
Saturday
A chance of rain. Mostly cloudy, with a high near 58.
Saturday Night
Rain likely. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Mostly cloudy, with a high near 56.
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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)
5:35 pm EDT Mar 29, 2026
12am EDT Mar 30, 2026-6pm EDT Apr 5, 2026


