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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

light rain,mist

39°F

4°C

Humidity 100%
Wind Speed WNW 3 MPH
Barometer 29.78 in (1008.47 mb)
Dewpoint 39°F (4°C)
Visibility 4.00 mi
Last update 01 Jan 03:45 PM PST
Extended Forecast for

3 Miles E Hillsboro OR

  • New Year's Day

    New Year's Day: Rain. Patchy fog after 5pm. High near 43. Calm wind. Chance of precipitation is 90%.

    High: 43 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain. Patchy fog. Steady temperature around 42. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: A 40 percent chance of rain between 3pm and 4pm. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 54. Calm wind.

    High: 54 °F

    Chance Rain
    and Patchy
    Fog

  • Friday Night

    Friday Night: Rain, mainly after 4am. Low around 44. Calm wind. Chance of precipitation is 80%.

    Low: 44 °F

    Chance Rain
    then Rain

  • Saturday

    Saturday: Rain. High near 54. Calm wind becoming east southeast 5 to 7 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 45. Chance of precipitation is 90%.

    Low: 45 °F

    Rain

  • Sunday

    Sunday: Rain. High near 52. Chance of precipitation is 80%.

    High: 52 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Rain

  • Monday

    Monday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 50.

    High: 50 °F

    Rain Likely

Detailed Forecast

New Year's Day
Rain. Patchy fog after 5pm. High near 43. Calm wind. Chance of precipitation is 90%.
Tonight
Rain. Patchy fog. Steady temperature around 42. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 40 percent chance of rain between 3pm and 4pm. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 54. Calm wind.
Friday Night
Rain, mainly after 4am. Low around 44. Calm wind. Chance of precipitation is 80%.
Saturday
Rain. High near 54. Calm wind becoming east southeast 5 to 7 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain. Low around 45. Chance of precipitation is 90%.
Sunday
Rain. High near 52. Chance of precipitation is 80%.
Sunday Night
Rain. Mostly cloudy, with a low around 42.
Monday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 50.
Monday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain. Mostly cloudy, with a high near 48.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 39.
Wednesday
Rain likely. Mostly cloudy, with a high near 48.
Wednesday Night
Rain likely. Snow level 2000 feet. Mostly cloudy, with a low around 36.
Thursday
A chance of rain. Snow level 1800 feet. Mostly cloudy, with a high near 46.
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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:
3:45 pm PST Jan 1, 2026
Forecast Valid:
4pm PST Jan 1, 2026-6pm PST Jan 8, 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