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
| 29 April 2026 Wed 7.8 ° C ( 46°F )  Partly Cloudy |
Feels Like : 6.3 ° C / 43.3°F Humidity : % 82 Pressure : 1024 mb Wind Speed : 8.6 kmph / 5.4 miles from NW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
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 |
|---|---|---|---|---|---|---|---|
| 28 April 2026 Tue |  Overcast |
9.1 ° C | 15.9 ° C | 11.7 ° C | % 68 | 12.2 km/h | 0% |
| 29 April 2026 Wed |  Sunny |
5.3 ° C | 20.5 ° C | 12.4 ° C | % 66 | 7.6 km/h | 0% |
| 30 April 2026 Thu | Partly Cloudy |
7.3 ° C | 23.2 ° C | 14.6 ° C | % 68 | 7.2 km/h | 0% |
| 01 May 2026 Fri | Sunny |
8.2 ° C | 21.4 ° C | 14 ° C | % 64 | 15.1 km/h | 0% |
| 02 May 2026 Sat |  Patchy rain nearby |
7.1 ° C | 22.1 ° C | 14.1 ° C | % 71 | 11.9 km/h | 88% |
| 03 May 2026 Sun | Sunny |
11 ° C | 30.3 ° C | 17.1 ° C | % 71 | 9.7 km/h | 0% |
| 04 May 2026 Mon | Partly Cloudy |
10.7 ° C | 21.3 ° C | 15.1 ° C | % 76 | 14.8 km/h | 0% |
| 05 May 2026 Tue |  Cloudy |
8.3 ° C | 18.2 ° C | 12.7 ° C | % 75 | 11.2 km/h | 0% |
| 06 May 2026 Wed | Cloudy |
7.8 ° C | 18.4 ° C | 13.1 ° C | % 69 | 6.8 km/h | 0% |
| 07 May 2026 Thu | Partly Cloudy |
10.4 ° C | 23.8 ° C | 16.3 ° C | % 70 | 5 km/h | 0% |
| 08 May 2026 Fri | Overcast |
10.3 ° C | 21.2 ° C | 15.4 ° C | % 74 | 5.4 km/h | 0% |
| 09 May 2026 Sat | Patchy rain nearby |
10.3 ° C | 20.1 ° C | 13.6 ° C | % 70 | 10.4 km/h | 87% |
| 10 May 2026 Sun | Patchy rain nearby |
8.7 ° C | 17.9 ° C | 12.4 ° C | % 80 | 5 km/h | 0% |
| 11 May 2026 Mon | Sunny |
6.9 ° C | 21.5 ° C | 13.8 ° C | % 68 | 17.3 km/h | 0% |
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