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

Spring Weather Hazards Across the U.S. Thursday

Gusty winds and low relative humidity will bring critical fire weather to the central and southern Plains and south Texas Thursday. Widespread high winds will continue to impact the interior Northwest, northern Plains, and Upper Midwest Thursday. A storm tracking across the northern Plains, Great Lakes and into the Northeast U.S. will bring heavy snow and gusty winds Thursday into Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

light rain,mist

51°F

11°C

Humidity 92%
Wind Speed S 10 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 49°F (9°C)
Visibility 6.00 mi
Last update 12 Mar 01:53 AM PDT
Extended Forecast for

Hillsboro OR

Flood Watch March 12, 02:07am until March 13, 11:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 12, 02:07am until March 13, 11:00pm

    NOW until 11:00pm Fri

    Flood Watch

  • Overnight

    Low: 43 °F

    Rain

  • Thursday

    Thursday: Rain. Steady temperature around 45. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Steady temperature around 44. Light and variable wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain

  • Friday

    Friday: Rain. High near 53. Light south wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 53 °F

    Rain

  • Friday Night

    Friday Night: Rain. Low around 37. Light southwest wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Rain

  • Saturday

    Saturday: A chance of rain before 8am, then a chance of rain and snow between 8am and 11am, then a slight chance of rain after 11am. Snow level 1200 feet rising to 1800 feet in the afternoon. Partly sunny, with a high near 51. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 51 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 5am. Snow level 2000 feet lowering to 900 feet after midnight . Mostly cloudy, with a low around 35. Little or no snow accumulation expected.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A chance of rain and snow before 11am, then rain likely. Snow level 1000 feet rising to 5500 feet in the afternoon. Cloudy, with a high near 49.

    High: 49 °F

    Rain/Snow
    Likely then
    Rain Likely

Detailed Forecast

Overnight
Rain. Low around 43. West wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain. Steady temperature around 45. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Steady temperature around 44. Light and variable wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 53. Light south wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
Rain. Low around 37. Light southwest wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
A chance of rain before 8am, then a chance of rain and snow between 8am and 11am, then a slight chance of rain after 11am. Snow level 1200 feet rising to 1800 feet in the afternoon. Partly sunny, with a high near 51. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
A 30 percent chance of snow after 5am. Snow level 2000 feet lowering to 900 feet after midnight . Mostly cloudy, with a low around 35. Little or no snow accumulation expected.
Sunday
A chance of rain and snow before 11am, then rain likely. Snow level 1000 feet rising to 5500 feet in the afternoon. Cloudy, with a high near 49.
Sunday Night
A chance of rain. Cloudy, with a low around 41.
Monday
A chance of rain, mainly before 11am. Mostly cloudy, with a high near 63.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
A chance of rain. Mostly cloudy, with a high near 67.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.92°W (Elev. 200 ft)
Last Update:
2:02 am PDT Mar 12, 2026
Forecast Valid:
2am PDT Mar 12, 2026-6pm PDT Mar 18, 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