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Above Average Temperatures in the West; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures will continue across the West this week, potentially breaking some daily high temperature records. A storm system dropping south out of Canada will bring a wintry mix to the Upper Midwest and Great Lakes Tuesday, pushing into the Central Appalachians and interior Northeast on Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Fog

36°F

2°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.38 in (1028.79 mb)
Dewpoint 36°F (2°C)
Visibility 0.25 mi
Last update 12 Jan 11:53 PM PST
Extended Forecast for

Hillsboro OR

Air Stagnation Advisory January 13, 12:15am until January 16, 04:00am
Dense Fog Advisory until January 13, 11:00am
Click here for hazard details and duration
Air Stagnation Advisory
Dense Fog Advisory
  •  
    Air Stagnation Advisory January 13, 12:15am until January 16, 04:00am
    Dense Fog Advisory until January 13, 11:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 37 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Widespread dense fog, mainly before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 53. Calm wind.

    High: 53 °F

    Dense Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Widespread dense fog, mainly after 4am. Otherwise, increasing clouds, with a low around 37. Calm wind.

    Low: 37 °F

    Dense Fog

  • Wednesday

    Wednesday: Widespread dense fog, mainly before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 52. Calm wind.

    High: 52 °F

    Dense Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog. Otherwise, partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 56.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 37. Calm wind.
Tuesday
Widespread dense fog, mainly before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 53. Calm wind.
Tuesday Night
Widespread dense fog, mainly after 4am. Otherwise, increasing clouds, with a low around 37. Calm wind.
Wednesday
Widespread dense fog, mainly before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 52. Calm wind.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 38. Calm wind.
Thursday
Patchy fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 53.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 34.
M.L.King Day
Mostly sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.92°W (Elev. 200 ft)
Last Update:
11:55 pm PST Jan 12, 2026
Forecast Valid:
12am PST Jan 13, 2026-6pm PST Jan 19, 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