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
| 03 August 2026 Mon 17.8 ° C ( 64°F )  Sunny |
Feels Like : 16.3 ° C / 61.3°F Humidity : % 81 Pressure : 1013 mb Wind Speed : 15.1 kmph / 9.4 miles from NNW 
Visibility : 10 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 |
|---|---|---|---|---|---|---|---|
| 03 August 2026 Mon | Sunny |
15.6 ° C | 28.1 ° C | 20.8 ° C | % 69 | 20.5 km/h | 5% |
| 04 August 2026 Tue | Sunny |
12.8 ° C | 27.8 ° C | 20.2 ° C | % 59 | 11.2 km/h | 3% |
| 05 August 2026 Wed | Sunny |
17.3 ° C | 30 ° C | 23.4 ° C | % 68 | 14.4 km/h | 17% |
| 06 August 2026 Thu | Sunny |
18.8 ° C | 27.9 ° C | 22.9 ° C | % 80 | 25.9 km/h | 68% |
| 07 August 2026 Fri |  Light rain shower |
18 ° C | 28.6 ° C | 23.1 ° C | % 87 | 13.7 km/h | 81% |
| 08 August 2026 Sat | Sunny |
20.1 ° C | 30.5 ° C | 24.5 ° C | % 75 | 24.8 km/h | 57% |
| 09 August 2026 Sun | Sunny |
15.4 ° C | 26.9 ° C | 21 ° C | % 70 | 11.5 km/h | 6% |
| 10 August 2026 Mon | Sunny |
18.6 ° C | 28.9 ° C | 22.8 ° C | % 78 | 20.5 km/h | 63% |
| 11 August 2026 Tue |  Thundery outbreaks in nearby |
20.4 ° C | 25.5 ° C | 22.9 ° C | % 92 | 19.8 km/h | 89% |
| 12 August 2026 Wed | Sunny |
17.9 ° C | 24.7 ° C | 21.1 ° C | % 77 | 20.5 km/h | 57% |
| 13 August 2026 Thu | Sunny |
15.1 ° C | 26.2 ° C | 20.7 ° C | % 66 | 14.8 km/h | 6% |
| 14 August 2026 Fri | Sunny |
18.1 ° C | 31.6 ° C | 24.3 ° C | % 77 | 24.5 km/h | 69% |
| 15 August 2026 Sat |  Partly Cloudy |
17.7 ° C | 24.5 ° C | 21 ° C | % 85 | 19.4 km/h | 72% |
| 16 August 2026 Sun | Sunny |
13.3 ° C | 20.1 ° C | 17.4 ° C | % 73 | 28.4 km/h | 57% |
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