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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Mostly Cloudy

61°F

16°C

Humidity 72%
Wind Speed SSE 4 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 20 Mar 03:00 PM PDT
Extended Forecast for

2 Miles WSW Hillsboro OR

  • This Afternoon

    This Afternoon: Rain likely. Cloudy, with a high near 62. Calm wind. Chance of precipitation is 70%.

    High: 62 °F

    Rain Likely

  • Tonight

    Tonight: A 40 percent chance of rain, mainly before 9pm. Mostly cloudy, with a low around 40. Light northwest wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 54. Light north northwest wind.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 34. Light north northwest wind.

    Low: 34 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 57. Light north wind.

    High: 57 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A slight chance of rain after 11pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Cloudy, with a high near 58.

    High: 58 °F

    Rain Likely

Detailed Forecast

This Afternoon
Rain likely. Cloudy, with a high near 62. Calm wind. Chance of precipitation is 70%.
Tonight
A 40 percent chance of rain, mainly before 9pm. Mostly cloudy, with a low around 40. Light northwest wind. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 54. Light north northwest wind.
Saturday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 34. Light north northwest wind.
Sunday
Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 57. Light north wind.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly cloudy, with a high near 57.
Monday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 44.
Tuesday
Rain likely, mainly after 11am. Cloudy, with a high near 58.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 43.
Wednesday
Rain likely. Mostly cloudy, with a high near 54.
Wednesday Night
A slight chance of rain. Snow level 3100 feet lowering to 1700 feet after midnight . Partly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Hillsboro OR
 45.52°N 122.98°W (Elev. 161 ft)
Last Update:
2:41 pm PDT Mar 20, 2026
Forecast Valid:
3pm PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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