National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather in the High Plains; Heat Continues in the West

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.

Clear

57°F

14°C

Humidity 76%
Wind Speed W 3 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 Mar 08:35 PM PDT
Extended Forecast for

5 Miles S Scappoose Industrial Apk (1s4) OR

  • Tonight

    Tonight: A 30 percent chance of rain, mainly between 1am and 2am. Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Mostly cloudy, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.

    High: 64 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Cloudy, with a low around 53. Light south southeast wind.

    Low: 53 °F

    Chance Rain

  • Friday

    Friday: Rain. High near 60. South wind 3 to 5 mph. Chance of precipitation is 80%.

    High: 60 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 40. Northwest wind around 6 mph. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain. Snow level 1700 feet rising to 2400 feet in the afternoon. Mostly cloudy, then gradually becoming sunny, with a high near 55.

    High: 55 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly between 1am and 2am. Mostly cloudy, with a low around 50. Calm wind.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 53. Light south southeast wind.
Friday
Rain. High near 60. South wind 3 to 5 mph. Chance of precipitation is 80%.
Friday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 40. Northwest wind around 6 mph. Chance of precipitation is 60%.
Saturday
A 20 percent chance of rain. Snow level 1700 feet rising to 2400 feet in the afternoon. Mostly cloudy, then gradually becoming sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly cloudy, with a high near 57.
Monday Night
A chance of rain. Mostly cloudy, with a low around 44.
Tuesday
Rain. Cloudy, with a high near 55.
Tuesday Night
Rain. Mostly cloudy, with a low around 41.
Wednesday
Rain likely. Mostly cloudy, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Scappoose Industrial Apk (1s4) OR
 45.69°N 122.87°W (Elev. 171 ft)
Last Update:
8:41 pm PDT Mar 18, 2026
Forecast Valid:
8pm PDT Mar 18, 2026-6pm PDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation