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

Hazardous Weather Conditions

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

75°F

24°C

Humidity 53%
Wind Speed W 3 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 24 Aug 02:30 AM PDT
Extended Forecast for

4 Miles SE Hillsboro OR

Extreme Heat Warning August 24, 02:47am until August 26, 11:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 24, 02:47am until August 26, 11:00pm

    NOW until 11:00pm Tue

    Extreme Heat Warning

  • Overnight

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 99. Calm wind becoming north around 5 mph in the afternoon.

    High: 99 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67. North northwest wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 96. Light and variable wind.

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67. North wind around 6 mph becoming calm in the evening.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 94.

    High: 94 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 67. Calm wind.
Sunday
Partly sunny, with a high near 99. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 67. North northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 96. Light and variable wind.
Monday Night
Partly cloudy, with a low around 67. North wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 94.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
Partly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 60.
Friday
Partly sunny, with a high near 79.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Hillsboro OR
 45.5°N 122.88°W (Elev. 200 ft)
Last Update:
2:41 am PDT Aug 24, 2025
Forecast Valid:
2am PDT Aug 24, 2025-6pm PDT Aug 30, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation