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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

37°F

3°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 12 Oct 04:30 AM PDT
Extended Forecast for

Cedar Hills OR

Frost Advisory until October 12, 08:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until October 12, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Overnight

    Low: 41 °F

    Clear

  • Columbus Day

    Columbus Day: Areas of frost between 7am and 9am. Otherwise, sunny, with a high near 66. Calm wind.

    High: 66 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 43. Calm wind.

    Low: 43 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. Calm wind.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 78.

    High: 78 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Overnight
Clear, with a low around 41. Calm wind.
Columbus Day
Areas of frost between 7am and 9am. Otherwise, sunny, with a high near 66. Calm wind.
Monday Night
Increasing clouds, with a low around 43. Calm wind.
Tuesday
Mostly sunny, with a high near 66. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 46. Calm wind.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 49.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Patchy fog. Otherwise, partly sunny, with a high near 69.
Saturday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 47.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cedar Hills OR
 45.5°N 122.82°W (Elev. 200 ft)
Last Update:
4:41 am PDT Oct 12, 2026
Forecast Valid:
4am PDT Oct 12, 2026-6pm PDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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