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.

Partly Cloudy

36°F

2°C

Humidity 100%
Wind Speed NNE 3 MPH
Barometer 30.48 in (1032.17 mb)
Dewpoint 36°F (2°C)
Visibility 8.00 mi
Last update 09 Jan 10:53 PM PST
Extended Forecast for

Hillsboro OR

Air Stagnation Advisory January 9, 11:08pm until January 11, 10:00am
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 9, 11:08pm until January 11, 10:00am

    NOW until 10:00am Sun

    Air Stagnation Advisory

  • Tonight

    Low: 38 °F

    Areas Fog

  • Saturday

    Saturday: Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 49. Calm wind.

    High: 49 °F

    Areas Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Patchy fog before 10pm, then patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A 30 percent chance of showers. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 50. Calm wind.

    High: 50 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: A 50 percent chance of showers, mainly before 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 53.

    High: 53 °F

    Chance
    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: A 20 percent chance of showers before 10pm. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

Tonight
Areas of fog. Otherwise, mostly cloudy, with a low around 38. Calm wind.
Saturday
Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 49. Calm wind.
Saturday Night
A 20 percent chance of showers. Patchy fog before 10pm, then patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 38. Calm wind.
Sunday
A 30 percent chance of showers. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 50. Calm wind.
Sunday Night
A 40 percent chance of showers. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Monday
A 50 percent chance of showers, mainly before 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 53.
Monday Night
A 20 percent chance of showers before 10pm. Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 54.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.51°N 122.94°W (Elev. 200 ft)
Last Update:
10:41 pm PST Jan 9, 2026
Forecast Valid:
11pm PST Jan 9, 2026-6pm PST Jan 16, 2026
 
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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