Portland Hillsboro Airport (HIO) 15 Day Weather Forecast, Hillsboro United States
Current weather conditions and 15 day weather forecast for Portland Hillsboro Airport in Hillsboro, 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 HIO
| 11 January 2026 Sun 4.4 ° C ( 39.9°F )  Mist |
Feels Like : 4 ° C / 39.3°F Humidity : % 97 Pressure : 1029 mb Wind Speed : 3.6 kmph / 2.2 miles from SSE 
Visibility : 6.4 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15-day weather forecast for Portland Hillsboro Airport, Hillsboro, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 11 January 2026 Sun |  Sunny |
2.8 ° C | 13.5 ° C | 6 ° C | % 88 | 5 km/h | 0% |
| 12 January 2026 Mon | Mist |
1.7 ° C | 5.9 ° C | 4.3 ° C | % 97 | 5 km/h | 0% |
| 13 January 2026 Tue |  Partly Cloudy |
4.6 ° C | 9.2 ° C | 6.3 ° C | % 93 | 4 km/h | 0% |
| 14 January 2026 Wed | Sunny |
5.6 ° C | 12.9 ° C | 8.3 ° C | % 85 | 5 km/h | 0% |
| 15 January 2026 Thu | Partly Cloudy |
5.6 ° C | 11.4 ° C | 7.5 ° C | % 91 | 8.6 km/h | 0% |
| 16 January 2026 Fri | Sunny |
4 ° C | 12.1 ° C | 6.8 ° C | % 73 | 8.6 km/h | 0% |
| 17 January 2026 Sat | Sunny |
3.1 ° C | 10.9 ° C | 6 ° C | % 71 | 3.6 km/h | 0% |
| 18 January 2026 Sun | Sunny |
2.9 ° C | 10.6 ° C | 5.8 ° C | % 71 | 4 km/h | 0% |
| 19 January 2026 Mon | Sunny |
2.2 ° C | 9.9 ° C | 5.1 ° C | % 70 | 4.3 km/h | 0% |
| 20 January 2026 Tue | Sunny |
1.7 ° C | 9.1 ° C | 4.8 ° C | % 73 | 2.9 km/h | 0% |
| 21 January 2026 Wed |  Patchy rain nearby |
3.6 ° C | 9.4 ° C | 6.3 ° C | % 89 | 11.2 km/h | 87% |
| 22 January 2026 Thu | Patchy rain nearby |
1 ° C | 5.9 ° C | 4.8 ° C | % 84 | 18.4 km/h | 84% |
| 23 January 2026 Fri | Patchy rain nearby |
1 ° C | 4.7 ° C | 2.6 ° C | % 84 | 24.1 km/h | 87% |
| 24 January 2026 Sat |  Moderate or heavy snow showers |
-3.5 ° C | 0.9 ° C | -0.2 ° C | % 84 | 23.8 km/h | 70% |
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