Current conditions at

Portland-Hillsboro Airport (KHIO)

Lat: 45.54765° N Lon: 122.95568° W Elev: 194.0 ft.

Mostly Cloudy

57°F

14°C

Humidity 77%
Wind Speed S 10 MPH
Barometer 29.79 in (1008.81 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 25 May 05:37 PM PDT
Detailed forecast for

Tualatin Valley

Tonight
Mostly cloudy with a 50 percent chance of showers. Lows in the mid 40s. South wind 5 to 10 mph. Rainfall amounts less than a tenth of an inch.
Tuesday
Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Winds light. Chance of rain 40 percent.
Tuesday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s. Northwest wind 5 to 10 mph.
Wednesday
Mostly sunny. Highs in the upper 70s. Light and variable winds, becoming light in the afternoon.
Wednesday Night
Partly cloudy in the evening, then becoming mostly clear. Lows around 50. Northwest wind 5 to 10 mph.
Thursday
Mostly sunny. Highs in the lower 80s.
Thursday Night
Partly cloudy. Lows around 50.
Friday
Partly sunny in the morning, then becoming mostly cloudy. Highs in the upper 60s.
Friday Night
Partly cloudy. Lows in the mid 40s.
Saturday
Mostly sunny. Highs in the upper 60s.
Saturday Night
Partly cloudy in the evening, then clearing. Lows in the lower 40s.
Sunday
Mostly sunny with a 20 percent chance of rain. Highs in the lower 70s.
Sunday Night
Mostly clear. Lows in the mid 40s.
Monday
Sunny. Highs in the lower 80s.



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502 PM PDT Mon May 25 2026
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database