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

I84 WB at Cascade Locks MP44.57 (ODT78)

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

NA

34°F

1°C

Humidity 86%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 22 Mar 06:16 AM PDT
Extended Forecast for

5 Miles S Cascade Locks OR

  • Today

    Today: Widespread frost before 8am.  Otherwise, mostly sunny, with a high near 56. Calm wind.

    High: 56 °F

    Frost then
    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Monday

    Monday: Areas of frost before 7am.  Otherwise, partly sunny, with a high near 57. Calm wind.

    High: 57 °F

    Areas Frost
    then Partly
    Sunny

  • Monday Night

    Monday Night: A 50 percent chance of showers after 11pm.  Mostly cloudy, with a low around 44. Calm wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Rain.  High near 53. Calm wind becoming southwest around 5 mph in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 53 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 39. Chance of precipitation is 100%.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 49. Chance of precipitation is 90%.

    High: 49 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am.  Snow level 3300 feet lowering to 1900 feet after midnight . Mostly cloudy, with a low around 34.

    Low: 34 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A slight chance of snow before 11am, then a slight chance of rain.  Snow level 1600 feet rising to 2800 feet in the afternoon. Mostly sunny, with a high near 52.

    High: 52 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

Detailed Forecast

Today
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 56. Calm wind.
Tonight
Mostly cloudy, with a low around 37. Calm wind.
Monday
Areas of frost before 7am. Otherwise, partly sunny, with a high near 57. Calm wind.
Monday Night
A 50 percent chance of showers after 11pm. Mostly cloudy, with a low around 44. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 53. Calm wind becoming southwest around 5 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
Rain. Low around 39. Chance of precipitation is 100%.
Wednesday
Rain. High near 49. Chance of precipitation is 90%.
Wednesday Night
Rain likely before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am. Snow level 3300 feet lowering to 1900 feet after midnight . Mostly cloudy, with a low around 34.
Thursday
A slight chance of snow before 11am, then a slight chance of rain. Snow level 1600 feet rising to 2800 feet in the afternoon. Mostly sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 38.
Saturday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Cascade Locks OR
 45.62°N 121.89°W (Elev. 833 ft)
5:41 am PDT Mar 22, 2026
6am PDT Mar 22, 2026-6pm PDT Mar 28, 2026
 
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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