National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

36°F

2°C

Humidity 86%
Wind Speed WNW 5 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 30 Dec 10:00 AM PST
Extended Forecast for

3 Miles E Hillsboro OR

  • Today

    Today: Sunny, with a high near 48. East wind around 6 mph.

    High: 48 °F

    Sunny

  • Tonight

    Tonight: Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 33. Light east wind.

    Low: 33 °F

    Frost

  • Wednesday

    Wednesday: Widespread frost, mainly before 9am. Otherwise, partly sunny, with a high near 47. Calm wind.

    High: 47 °F

    Frost then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost between 9pm and 1am. Otherwise, mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Areas Frost

  • New Year's Day

    New Year's Day: A 40 percent chance of rain. Cloudy, with a high near 46. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 41. Chance of precipitation is 70%.

    Low: 41 °F

    Rain Likely

  • Friday

    Friday: Showers likely. Cloudy, with a high near 49. Chance of precipitation is 70%.

    High: 49 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers. Cloudy, with a low around 43.

    Low: 43 °F

    Showers

  • Saturday

    Saturday: Showers. Cloudy, with a high near 50.

    High: 50 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 48. East wind around 6 mph.
Tonight
Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 33. Light east wind.
Wednesday
Widespread frost, mainly before 9am. Otherwise, partly sunny, with a high near 47. Calm wind.
Wednesday Night
Areas of frost between 9pm and 1am. Otherwise, mostly cloudy, with a low around 34. Calm wind.
New Year's Day
A 40 percent chance of rain. Cloudy, with a high near 46. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely. Cloudy, with a low around 41. Chance of precipitation is 70%.
Friday
Showers likely. Cloudy, with a high near 49. Chance of precipitation is 70%.
Friday Night
Showers. Cloudy, with a low around 43.
Saturday
Showers. Cloudy, with a high near 50.
Saturday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 41.
Sunday
A chance of showers. Mostly cloudy, with a high near 50.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 39.
Monday
A chance of showers. Mostly cloudy, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Hillsboro OR
 45.52°N 122.85°W (Elev. 200 ft)
Last Update:
9:45 am PST Dec 30, 2025
Forecast Valid:
10am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation