PORTLAND-HILLSBORO AIRPORT, OR, United States (KHIO) 45-33N 122-57W 68M Dec 15, 2025 - 10:53 PM EST / 2025.12.16 0353 UTC Wind: Calm:0 Visibility: 10 mile(s):0 Sky conditions: clear Temperature: 51.1 F (10.6 C) Dew Point: 46.9 F (8.3 C) Relative Humidity: 85% Pressure (altimeter): 30.09 in. Hg (1018 hPa) ob: KHIO 160353Z 00000KT 10SM CLR 11/08 A3009 RMK AO2 SLP189 T01060083 cycle: 4