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

Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

30°F

-1°C

Humidity 100%
Wind Speed NW 4 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 29 Dec 10:35 PM PST
Extended Forecast for

3 Miles WSW Cedar Hills OR

  • Tonight

    Tonight: Widespread frost, mainly between 4am and 5am. Otherwise, partly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Frost

  • Tuesday

    Tuesday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 48. Light east wind.

    High: 48 °F

    Frost then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 32. Calm wind.

    Low: 32 °F

    Frost

  • Wednesday

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

    High: 47 °F

    Frost then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • New Year's Day

    New Year's Day: A 40 percent chance of rain, mainly after 10am. Cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Rain Likely

  • Friday

    Friday: Rain. Cloudy, with a high near 49.

    High: 49 °F

    Rain

  • Friday Night

    Friday Night: Rain likely. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain Likely

Detailed Forecast

Tonight
Widespread frost, mainly between 4am and 5am. Otherwise, partly cloudy, with a low around 34. Calm wind.
Tuesday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 48. Light east wind.
Tuesday Night
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 32. Calm wind.
Wednesday
Widespread frost, mainly before 9am. Otherwise, partly sunny, with a high near 47. Calm wind.
Wednesday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 36. Calm wind.
New Year's Day
A 40 percent chance of rain, mainly after 10am. Cloudy, with a high near 45.
Thursday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
Friday
Rain. Cloudy, with a high near 49.
Friday Night
Rain likely. Mostly cloudy, with a low around 41.
Saturday
Rain likely. Mostly cloudy, with a high near 49.
Saturday Night
Rain likely. Mostly cloudy, with a low around 41.
Sunday
Rain likely. Cloudy, with a high near 50.
Sunday Night
Rain likely. Mostly cloudy, with a low around 40.
Monday
Rain likely. Mostly cloudy, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Cedar Hills OR
 45.5°N 122.88°W (Elev. 200 ft)
Last Update:
10:45 pm PST Dec 29, 2025
Forecast Valid:
10pm PST Dec 29, 2025-6pm PST Jan 5, 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