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

Critical Fire Weather and Severe Thunderstorm Threats This Week

Gusty winds and low relative humidity will contribute to critical fire weather Monday over parts of the central and southern High Plains. Scattered to widespread severe thunderstorms may bring damaging winds, large hail, and tornadoes Monday through Thursday over the lower Mississippi River Valley and southern Plains into the Midwest and Ohio Valley. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Overcast

46°F

8°C

Humidity 81%
Wind Speed NNW 11 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 08 Mar 07:00 PM PDT
Extended Forecast for

Hillsboro OR

  • Tonight

    Tonight: Showers likely, mainly after 4am. Patchy fog after 5am. Snow level 3700 feet lowering to 1400 feet after midnight . Otherwise, partly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 34 °F

    Slight Chance
    Rain then
    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: A chance of rain and snow showers before 11am, then rain showers. Patchy fog between 7am and 8am. Snow level 1100 feet rising to 1600 feet in the afternoon. High near 48. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow and
    Patchy Fog
    then Showers

  • Monday Night

    Monday Night: Rain showers before 11pm, then a chance of rain and snow showers. Patchy fog before 1am, then patchy fog after 2am. Snow level 1500 feet lowering to 600 feet after midnight . Low around 32. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    then Chance
    Rain/Snow and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of rain and snow showers before 11am, then rain showers. Patchy fog before 8am. Snow level 300 feet rising to 1900 feet in the afternoon. High near 48. Calm wind becoming south southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 48 °F

    Rain/Snow and
    Patchy Fog
    then Showers

  • Tuesday Night

    Tuesday Night: Showers. Snow level 2300 feet. Low around 40. South wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Showers

  • Wednesday

    Wednesday: Rain. High near 53. Chance of precipitation is 100%.

    High: 53 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 49. Chance of precipitation is 100%.

    Low: 49 °F

    Rain

  • Thursday

    Thursday: Rain. Cloudy, with a high near 51.

    High: 51 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Cloudy, with a low around 43.

    Low: 43 °F

    Rain

Detailed Forecast

Tonight
Showers likely, mainly after 4am. Patchy fog after 5am. Snow level 3700 feet lowering to 1400 feet after midnight . Otherwise, partly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Monday
A chance of rain and snow showers before 11am, then rain showers. Patchy fog between 7am and 8am. Snow level 1100 feet rising to 1600 feet in the afternoon. High near 48. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday Night
Rain showers before 11pm, then a chance of rain and snow showers. Patchy fog before 1am, then patchy fog after 2am. Snow level 1500 feet lowering to 600 feet after midnight . Low around 32. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday
A chance of rain and snow showers before 11am, then rain showers. Patchy fog before 8am. Snow level 300 feet rising to 1900 feet in the afternoon. High near 48. Calm wind becoming south southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday Night
Showers. Snow level 2300 feet. Low around 40. South wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. High near 53. Chance of precipitation is 100%.
Wednesday Night
Rain. Low around 49. Chance of precipitation is 100%.
Thursday
Rain. Cloudy, with a high near 51.
Thursday Night
Rain. Cloudy, with a low around 43.
Friday
Rain. Cloudy, with a high near 52.
Friday Night
Rain likely. Cloudy, with a low around 41.
Saturday
Rain likely. Cloudy, with a high near 53.
Saturday Night
A chance of rain. Cloudy, with a low around 40.
Sunday
A chance of rain. Cloudy, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.92°W (Elev. 200 ft)
Last Update:
6:41 pm PDT Mar 8, 2026
Forecast Valid:
7pm PDT Mar 8, 2026-6pm PDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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