St Clair County International Airport (PHN) 15 Day Weather Forecast, Port Huron United States
Current weather conditions and 15 day weather forecast for St Clair County International Airport in Port Huron, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at PHN
| 05 December 2025 Fri -15 ° C ( 5°F )  Clear |
Feels Like : -20 ° C / -3.9°F Humidity : % 78 Pressure : 1022 mb Wind Speed : 7.2 kmph / 4.5 miles from SSW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for St Clair County International Airport, Port Huron, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 05 December 2025 Fri |  Partly Cloudy |
-11.1 ° C | -2.8 ° C | -6.3 ° C | % 72 | 22.7 km/h | 0% |
| 06 December 2025 Sat |  Overcast |
-4.1 ° C | 0.8 ° C | -1.4 ° C | % 85 | 25.2 km/h | 0% |
| 07 December 2025 Sun | Overcast |
-5.1 ° C | -2 ° C | -3.6 ° C | % 90 | 29.9 km/h | 0% |
| 08 December 2025 Mon | Partly Cloudy |
-8.9 ° C | -4.7 ° C | -6.7 ° C | % 76 | 31.7 km/h | 0% |
| 09 December 2025 Tue | Overcast |
-7.6 ° C | -1 ° C | -5.2 ° C | % 75 | 34.2 km/h | 0% |
| 10 December 2025 Wed |  Blizzard |
-4.5 ° C | 2.6 ° C | 0.8 ° C | % 84 | 39.6 km/h | 84% |
| 11 December 2025 Thu |  Cloudy |
-9 ° C | -4.2 ° C | -6.5 ° C | % 77 | 25.9 km/h | 0% |
| 12 December 2025 Fri |  Light freezing rain |
-6.2 ° C | -3.9 ° C | -5.1 ° C | % 83 | 18.4 km/h | 84% |
| 13 December 2025 Sat | Sunny |
-7.9 ° C | -3.5 ° C | -5.3 ° C | % 78 | 22.7 km/h | 0% |
| 14 December 2025 Sun | Partly Cloudy |
-5.1 ° C | 3.3 ° C | -0.5 ° C | % 73 | 33.1 km/h | 0% |
| 15 December 2025 Mon | Partly Cloudy |
-7.8 ° C | -4.6 ° C | -6.2 ° C | % 74 | 27.4 km/h | 0% |
| 16 December 2025 Tue | Overcast |
-6.7 ° C | -2.5 ° C | -4 ° C | % 74 | 15.1 km/h | 0% |
| 17 December 2025 Wed | Light freezing rain |
-1.4 ° C | 0.1 ° C | -0.6 ° C | % 85 | 13.7 km/h | 0% |
| 18 December 2025 Thu |  Patchy moderate snow |
-1.7 ° C | 0.1 ° C | -0.6 ° C | % 91 | 20.5 km/h | 73% |
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