Current conditions at
St Clair County International Airport (KPHN)
Lat: 42.91°NLon: 82.53°WElev: 636ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Saint Clair MI
This Afternoon

High: 63 °F
Mostly Cloudy
Tonight

Low: 53 °F
Rain
Friday
High: 60 °F⇓
Chance Rain
then RainFriday Night

Low: 37 °F
Rain Likely
Saturday

High: 52 °F
Sunny
Saturday Night

Low: 36 °F
Clear
Sunday

High: 62 °F
Sunny
Sunday Night

Low: 41 °F
Mostly Clear
Monday

High: 64 °F
Sunny
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 63. East southeast wind around 7 mph.
Tonight
Rain and possibly a thunderstorm before 3am, then rain likely. Low around 53. East southeast wind 7 to 10 mph becoming south southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of rain before 11am, then rain after 1pm. Temperature falling to around 54 by 5pm. West wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain likely, mainly before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 37. North northwest wind 14 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 52. North northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 36.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 65.
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ABOUT THIS FORECAST
Point Forecast:
Saint Clair MI
42.82°N 82.51°W (Elev. 600 ft)
42.82°N 82.51°W (Elev. 600 ft)
9:49 am EDT Oct 15, 2026
1pm EDT Oct 15, 2026-6pm EDT Oct 21, 2026


