Current conditions at
St Clair County International Airport (KPHN)
Lat: 42.91°NLon: 82.53°WElev: 636ft.
Overcast
34°F
1°C
| Humidity | 87% |
| Wind Speed | Calm |
| Barometer | 30.01 in |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Last update | 21 Mar 7:56 am EDT |
Extended Forecast for
Port Huron MI
Today

High: 47 °F
Mostly Cloudy
Tonight

Low: 40 °F
Mostly Cloudy
Sunday

High: 46 °F⇓
Showers
LikelySunday Night
Low: 30 °F
Chance
Showers then
Mostly CloudyMonday

High: 36 °F
Partly Sunny
Monday Night

Low: 24 °F
Mostly Clear
Tuesday

High: 45 °F
Partly Sunny
Tuesday Night

Low: 31 °F
Mostly Cloudy
Wednesday

High: 43 °F
Partly Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 47. Calm wind becoming south 5 to 7 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 40. South southeast wind around 7 mph.
Sunday
Showers likely, mainly before 2pm. Mostly cloudy, with a temperature rising to near 46 by 11am, then falling to around 38 during the remainder of the day. North wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 30. North wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 36. North wind around 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 24.
Tuesday
Partly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
A chance of rain. Mostly cloudy, with a high near 54.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 28.
Friday
Mostly cloudy, with a high near 37.
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ABOUT THIS FORECAST
Point Forecast:
Port Huron MI
42.97°N 82.43°W (Elev. 600 ft)
42.97°N 82.43°W (Elev. 600 ft)
4:24 am EDT Mar 21, 2026
8am EDT Mar 21, 2026-6pm EDT Mar 27, 2026


