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

13 December 2025 Sat
11.7 ° C
( 53.1°F )

Overcast
Overcast
Feels Like : 12.1 ° C / 53.8°F
Humidity : % 93
Pressure : 1021 mb
Wind Speed : 3.6 kmph / 2.2 miles from SS
Visibility : 11 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 100

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
12 December 2025 Fri Mist Mist 9.4 ° C 13.3 ° C 12 ° C % 95 3.2 km/h 0%
13 December 2025 Sat Fog Fog 7.3 ° C 10.9 ° C 9.1 ° C % 96 4.3 km/h 0%
14 December 2025 Sun Heavy rain Heavy rain 6.3 ° C 8.7 ° C 7.2 ° C % 98 5.4 km/h 87%
15 December 2025 Mon Moderate rain Moderate rain 6.6 ° C 13.8 ° C 10.1 ° C % 93 12.6 km/h 89%
16 December 2025 Tue Moderate rain Moderate rain 6.1 ° C 11.9 ° C 10.2 ° C % 92 24.5 km/h 89%
17 December 2025 Wed Patchy rain nearby Patchy rain nearby 4.2 ° C 8.5 ° C 5.9 ° C % 77 17.6 km/h 75%
18 December 2025 Thu Moderate rain Moderate rain 5.4 ° C 9.1 ° C 6.8 ° C % 84 27.7 km/h 86%
19 December 2025 Fri Patchy rain nearby Patchy rain nearby 3.7 ° C 7.4 ° C 5.1 ° C % 88 12.6 km/h 88%
20 December 2025 Sat Patchy rain nearby Patchy rain nearby 3 ° C 6 ° C 4.1 ° C % 91 17.6 km/h 83%
21 December 2025 Sun Patchy rain nearby Patchy rain nearby 1.1 ° C 5.5 ° C 3.4 ° C % 88 19.1 km/h 87%
22 December 2025 Mon Partly Cloudy  Partly Cloudy 0.6 ° C 5.1 ° C 2.7 ° C % 84 15.8 km/h 0%
23 December 2025 Tue Patchy rain nearby Patchy rain nearby 0.9 ° C 4 ° C 2.6 ° C % 83 14.8 km/h 87%
24 December 2025 Wed Patchy rain nearby Patchy rain nearby 3.1 ° C 4.4 ° C 3.9 ° C % 94 6.8 km/h 89%
25 December 2025 Thu Patchy rain nearby Patchy rain nearby 0.3 ° C 2 ° C 1.5 ° C % 95 10.1 km/h 79%
Weather forecasts are usually fully updated every 3 hours.

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