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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

44°F

7°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.41 in (1029.8 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 10 Jan 04:53 PM PST
Extended Forecast for

Hillsboro OR

Air Stagnation Advisory January 10, 05:03pm until January 11, 10:00am
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 10, 05:03pm until January 11, 10:00am

    NOW until 10:00am Sun

    Air Stagnation Advisory

  • Tonight

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A 30 percent chance of rain, mainly before 1pm. Mostly cloudy, with a high near 50. Calm wind.

    High: 50 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Slight Chance
    Rain

  • Monday

    Monday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 52. Calm wind.

    High: 52 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Monday Night

    Monday Night: Patchy dense fog after 4am. Otherwise, mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy
    then Patchy
    Dense Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 54.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 54.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly between 3am and 5am. Mostly cloudy, with a low around 38. Calm wind.
Sunday
A 30 percent chance of rain, mainly before 1pm. Mostly cloudy, with a high near 50. Calm wind.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 39. Calm wind.
Monday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 52. Calm wind.
Monday Night
Patchy dense fog after 4am. Otherwise, mostly cloudy, with a low around 39. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 54.
Tuesday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 38.
Wednesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 54.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.95°W (Elev. 200 ft)
Last Update:
4:41 pm PST Jan 10, 2026
Forecast Valid:
5pm PST Jan 10, 2026-6pm PST Jan 17, 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