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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

Lat: 45.59578°NLon: 122.60917°WElev: 20.0ft.

Mostly Cloudy

58°F

14°C

Humidity 74%
Wind Speed WNW 6 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 17 Mar 07:53 PM PDT
Extended Forecast for

Portland International Airport OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly after 8am. Mostly cloudy, with a high near 65. South southwest wind 3 to 6 mph.

    High: 65 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 50. South southeast wind 3 to 5 mph.

    Low: 50 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 30 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 68. South wind 3 to 6 mph.

    High: 68 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 52. Southeast wind 3 to 6 mph.

    Low: 52 °F

    Chance Rain

  • Friday

    Friday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • Saturday

    Saturday: A chance of rain, mainly before 11am. Partly sunny, with a high near 55.

    High: 55 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 47. Light and variable wind.
Wednesday
A 40 percent chance of rain, mainly after 8am. Mostly cloudy, with a high near 65. South southwest wind 3 to 6 mph.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50. South southeast wind 3 to 5 mph.
Thursday
A 30 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 68. South wind 3 to 6 mph.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 52. Southeast wind 3 to 6 mph.
Friday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Friday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Saturday
A chance of rain, mainly before 11am. Partly sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 37.
Monday
A slight chance of rain. Partly sunny, with a high near 59.
Monday Night
A chance of rain. Mostly cloudy, with a low around 43.
Tuesday
Rain. Mostly cloudy, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland International Airport OR
 45.58°N 122.59°W (Elev. 200 ft)
Last Update:
7:41 pm PDT Mar 17, 2026
Forecast Valid:
8pm PDT Mar 17, 2026-6pm PDT Mar 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation