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Above Average Temperatures for Most Today; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures are forecast today into Wednesday over most of the lower 48 states away from the Gulf Coast. A storm system passing across southern Canada will bring a wintry mix to the upper Great Lakes today. A trailing cold front will then bring the wintry mix from the central Appalachians through the Northeast U.S. Wednesday and Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Fog

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 39°F (4°C)
Visibility 0.13 mi
Last update 13 Jan 11:20 AM PST
Extended Forecast for

2 Miles WSW Hillsboro OR

Air Stagnation Advisory January 13, 11:39am until January 16, 04:00am
Dense Fog Advisory January 13, 11:39am until January 13, 02:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Dense Fog Advisory
  •  
    Air Stagnation Advisory January 13, 11:39am until January 16, 04:00am
    Dense Fog Advisory January 13, 11:39am until January 13, 02:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy dense fog. Otherwise, mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Widespread dense fog, mainly before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 50. Calm wind.

    High: 50 °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 dense fog before 10am. Otherwise, sunny, with a high near 53. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 53 °F

    Patchy Dense
    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

  • Friday Night

    Friday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Today
Partly sunny, with a high near 50. Calm wind.
Tonight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 37. Calm wind.
Wednesday
Widespread dense fog, mainly before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 50. Calm wind.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 38. Calm wind.
Thursday
Patchy dense fog before 10am. Otherwise, sunny, with a high near 53. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 53.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 51.
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
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Hillsboro OR
 45.52°N 122.98°W (Elev. 161 ft)
Last Update:
11:05 am PST Jan 13, 2026
Forecast Valid:
11am PST Jan 13, 2026-6pm PST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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