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

I84 WB at Cascade Locks MP44.57 (ODT78)

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

NA

54°F

12°C

Humidity 43%
Wind Speed WSW 10 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 21 Mar 02:45 PM PDT
Extended Forecast for

Cascade Locks OR

  • This Afternoon

    This Afternoon: Sunny, with a high near 52. Breezy, with a southwest wind around 16 mph, with gusts as high as 28 mph.

    High: 52 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, mostly clear, with a low around 36. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 36 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Sunny, with a high near 58. Light and variable wind becoming northeast around 6 mph in the morning.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40. Calm wind becoming east northeast around 6 mph in the evening.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 58. South southwest wind 6 to 8 mph becoming west in the afternoon.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of showers after 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers. High near 53. Breezy. Chance of precipitation is 100%.

    High: 53 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain. Cloudy, with a low around 44. Breezy.

    Low: 44 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: Rain. Mostly cloudy, with a high near 52. Breezy.

    High: 52 °F

    Rain and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 52. Breezy, with a southwest wind around 16 mph, with gusts as high as 28 mph.
Tonight
Areas of frost after 4am. Otherwise, mostly clear, with a low around 36. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 58. Light and variable wind becoming northeast around 6 mph in the morning.
Sunday Night
Partly cloudy, with a low around 40. Calm wind becoming east northeast around 6 mph in the evening.
Monday
Partly sunny, with a high near 58. South southwest wind 6 to 8 mph becoming west in the afternoon.
Monday Night
A 50 percent chance of showers after 11pm. Mostly cloudy, with a low around 46.
Tuesday
Showers. High near 53. Breezy. Chance of precipitation is 100%.
Tuesday Night
Rain. Cloudy, with a low around 44. Breezy.
Wednesday
Rain. Mostly cloudy, with a high near 52. Breezy.
Wednesday Night
Rain likely, mainly before 11pm. Snow level 3600 feet lowering to 1900 feet after midnight . Mostly cloudy, with a low around 37. Breezy.
Thursday
A chance of rain. Snow level 1700 feet rising to 2900 feet in the afternoon. Mostly sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cascade Locks OR
 45.68°N 121.88°W (Elev. 194 ft)
Last Update:
2:41 pm PDT Mar 21, 2026
Forecast Valid:
3pm PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation