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

43°F

6°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 30.49 in (1032.51 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 09 Jan 11:53 AM PST
Extended Forecast for

4 Miles ENE Hillsboro OR

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

    NOW until 10:00am Sun

    Air Stagnation Advisory

  • This Afternoon

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 49. Calm wind.

    High: 49 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 40 percent chance of rain. Mostly cloudy, with a high near 51. Calm wind.

    High: 51 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Monday

    Monday: A 50 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance Rain

  • Monday Night

    Monday Night: A slight chance of rain before 10pm. Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain then
    Patchy Fog

Detailed Forecast

This Afternoon
Partly sunny, with a high near 50. Calm wind.
Tonight
Mostly cloudy, with a low around 37. Calm wind.
Saturday
Mostly cloudy, with a high near 49. Calm wind.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 36. Calm wind.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 51. Calm wind.
Sunday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 43.
Monday
A 50 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 55.
Monday Night
A slight chance of rain before 10pm. Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 44.
Tuesday
Patchy fog between 9am and 11am. Otherwise, partly sunny, with a high near 58.
Tuesday Night
Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 43.
Wednesday
Patchy fog. Otherwise, partly sunny, with a high near 56.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 41.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Hillsboro OR
 45.54°N 122.86°W (Elev. 200 ft)
Last Update:
10:41 am PST Jan 9, 2026
Forecast Valid:
12pm PST Jan 9, 2026-6pm PST Jan 15, 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