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
| 18 March 2026 Wed -1.7 ° C ( 28.9°F )  Partly cloudy |
Feels Like : -8.4 ° C / 16.8°F Humidity : % 46 Pressure : 1022 mb Wind Speed : 27.7 kmph / 17.2 miles from SSW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
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 |
|---|---|---|---|---|---|---|---|
| 18 March 2026 Wed |  Light freezing rain |
-7.6 ° C | 0.4 ° C | -3.2 ° C | % 63 | 30.2 km/h | 66% |
| 19 March 2026 Thu |  Overcast |
-1.9 ° C | 6.7 ° C | 1.8 ° C | % 81 | 22.3 km/h | 0% |
| 20 March 2026 Fri |  Patchy rain nearby |
-0.3 ° C | 7.8 ° C | 3.7 ° C | % 96 | 21.6 km/h | 87% |
| 21 March 2026 Sat | Partly Cloudy |
2.6 ° C | 10.8 ° C | 5.9 ° C | % 82 | 19.1 km/h | 0% |
| 22 March 2026 Sun |  Moderate rain |
1.8 ° C | 9.7 ° C | 6.4 ° C | % 89 | 31.7 km/h | 75% |
| 23 March 2026 Mon |  Blowing snow |
-4 ° C | -0.3 ° C | -1 ° C | % 80 | 30.6 km/h | 89% |
| 24 March 2026 Tue |  Sunny |
-4.6 ° C | 3.4 ° C | -1.1 ° C | % 60 | 12.2 km/h | 0% |
| 25 March 2026 Wed | Partly Cloudy |
-0.5 ° C | 8.5 ° C | 4.1 ° C | % 59 | 22 km/h | 0% |
| 26 March 2026 Thu | Moderate rain |
1.3 ° C | 13.5 ° C | 9.2 ° C | % 84 | 42.1 km/h | 83% |
| 27 March 2026 Fri | Blowing snow |
-6.2 ° C | -3.5 ° C | -4.5 ° C | % 62 | 30.6 km/h | 68% |
| 28 March 2026 Sat | Light freezing rain |
-6.1 ° C | 4.3 ° C | -1 ° C | % 57 | 32.8 km/h | 78% |
| 29 March 2026 Sun | Sunny |
-5.2 ° C | 0.2 ° C | -3.2 ° C | % 56 | 24.5 km/h | 0% |
| 30 March 2026 Mon | Partly Cloudy |
-5.3 ° C | 3.6 ° C | -1.1 ° C | % 58 | 23 km/h | 0% |
| 31 March 2026 Tue | Patchy rain nearby |
0.5 ° C | 6.5 ° C | 4.1 ° C | % 86 | 32.4 km/h | 88% |
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