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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.

Mist

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 39°F (4°C)
Visibility 4.00 mi
Last update 11 Jan 03:00 AM PST
Extended Forecast for

5 Miles NE Hillsboro OR

Air Stagnation Advisory January 11, 03:24am until January 16, 04:00am
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 11, 03:24am until January 16, 04:00am

    NOW until 4:00am Fri

    Air Stagnation Advisory

  • Overnight

    Low: 39 °F

    Chance Rain

  • Sunday

    Sunday: A slight chance of rain before 2pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 49. Light south wind. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly before 8pm. Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Chance Rain
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 51.

    High: 51 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog between midnight and 1am. Otherwise, partly cloudy, with a low around 38.

    Low: 38 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 51.

    High: 51 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 5am. Mostly cloudy, with a low around 39. Calm wind.
Sunday
A slight chance of rain before 2pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 49. Light south wind. Chance of precipitation is 20%.
Sunday Night
A 30 percent chance of rain, mainly before 8pm. Mostly cloudy, with a low around 39. Calm wind.
Monday
Partly sunny, with a high near 52. Calm wind.
Monday Night
Partly cloudy, with a low around 38. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 51.
Tuesday Night
Patchy fog between midnight and 1am. Otherwise, partly cloudy, with a low around 38.
Wednesday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 51.
Wednesday Night
Patchy fog between 9pm and 10pm. Otherwise, partly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 54.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Hillsboro OR
 45.6°N 122.88°W (Elev. 400 ft)
Last Update:
2:45 am PST Jan 11, 2026
Forecast Valid:
3am PST Jan 11, 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