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

Early Heat Wave in the West; Fire Concerns in the 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. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

I84 WB at Cascade Locks MP44.57 (ODT78)

Lat: 45.66931°NLon: 121.88484°WElev: 194.0ft.

NA

60°F

16°C

Humidity 45%
Wind Speed SW 6 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 17 Mar 11:21 AM PDT
Extended Forecast for

4 Miles SSW Cascade Locks OR

  • Today

    Today: A 50 percent chance of rain, mainly after 5pm. Partly sunny, with a high near 61. Calm wind.

    High: 61 °F

    Chance Rain

  • Tonight

    Tonight: A 20 percent chance of rain between 4am and 5am. Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly after noon. Mostly sunny, with a high near 63. Calm wind.

    High: 63 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Partly sunny, with a high near 66. Light west southwest wind.

    High: 66 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance Rain

  • Friday

    Friday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Rain

  • Saturday

    Saturday: A chance of rain. Partly sunny, with a high near 49.

    High: 49 °F

    Chance Rain

Detailed Forecast

Today
A 50 percent chance of rain, mainly after 5pm. Partly sunny, with a high near 61. Calm wind.
Tonight
A 20 percent chance of rain between 4am and 5am. Partly cloudy, with a low around 48. Calm wind.
Wednesday
A 40 percent chance of rain, mainly after noon. Mostly sunny, with a high near 63. Calm wind.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 50. Calm wind.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 66. Light west southwest wind.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 51.
Friday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
Friday Night
Rain. Mostly cloudy, with a low around 40.
Saturday
A chance of rain. Partly sunny, with a high near 49.
Saturday Night
A slight chance of rain before 11pm. Snow level 3400 feet lowering to 2400 feet after midnight . Partly cloudy, with a low around 34.
Sunday
A slight chance of rain and snow. Snow level 2100 feet rising to 3700 feet in the afternoon. Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 35.
Monday
A chance of rain. Partly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Cascade Locks OR
 45.62°N 121.89°W (Elev. 833 ft)
Last Update:
11:28 am PDT Mar 17, 2026
Forecast Valid:
11am PDT Mar 17, 2026-6pm PDT Mar 23, 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