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
| 14 December 2025 Sun -15.9 ° C ( 3.4°F )  Clear |
Feels Like : -25.3 ° C / -13.5°F Humidity : % 71 Pressure : 1022 mb Wind Speed : 19.8 kmph / 12.3 miles from W 
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 |
|---|---|---|---|---|---|---|---|
| 14 December 2025 Sun |  Partly Cloudy |
-15.5 ° C | -6.2 ° C | -10.6 ° C | % 77 | 31.7 km/h | 0% |
| 15 December 2025 Mon |  Overcast |
-9.6 ° C | -6.1 ° C | -7.7 ° C | % 80 | 27.4 km/h | 0% |
| 16 December 2025 Tue | Overcast |
-9.8 ° C | -3.4 ° C | -5.9 ° C | % 89 | 31.7 km/h | 0% |
| 17 December 2025 Wed |  Light freezing rain |
-5.3 ° C | 2.6 ° C | 0.2 ° C | % 89 | 34.2 km/h | 87% |
| 18 December 2025 Thu |  Moderate or heavy snow showers |
-5 ° C | 7.2 ° C | 0.3 ° C | % 87 | 37.8 km/h | 58% |
| 19 December 2025 Fri |  Light snow |
-5.9 ° C | -3.4 ° C | -4 ° C | % 68 | 36.4 km/h | 0% |
| 20 December 2025 Sat |  Patchy rain nearby |
-1.8 ° C | 2.5 ° C | 1.1 ° C | % 81 | 29.9 km/h | 82% |
| 21 December 2025 Sun | Sunny |
-4.9 ° C | -3.5 ° C | -3.3 ° C | % 67 | 23 km/h | 0% |
| 22 December 2025 Mon | Sunny |
-4.2 ° C | 0.8 ° C | -1.6 ° C | % 69 | 25.2 km/h | 0% |
| 23 December 2025 Tue | Patchy rain nearby |
-1.1 ° C | 5.7 ° C | 3.1 ° C | % 82 | 35.3 km/h | 75% |
| 24 December 2025 Wed |  Moderate snow |
-1.8 ° C | -0.2 ° C | -1.1 ° C | % 82 | 12.6 km/h | 77% |
| 25 December 2025 Thu | Light freezing rain |
-2.9 ° C | -0.6 ° C | -1.8 ° C | % 80 | 10.4 km/h | 89% |
| 26 December 2025 Fri | Moderate or heavy snow showers |
-2.6 ° C | -1.4 ° C | -2 ° C | % 82 | 27 km/h | 81% |
| 27 December 2025 Sat | Light freezing rain |
-5.3 ° C | -3 ° C | -3.3 ° C | % 81 | 26.6 km/h | 61% |
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