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

53°F

12°C

Humidity 86%
Wind Speed S 6 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 21 Mar 12:05 AM PDT
Extended Forecast for

Cascade Locks OR

  • Overnight

    Overnight: A 50 percent chance of rain, mainly before 5am. Mostly cloudy, with a low around 41. West southwest wind around 7 mph.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 52. West southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 3am. Otherwise, clear, with a low around 35. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 59 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. North wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. Cloudy, with a high near 56.

    High: 56 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Rain

Detailed Forecast

Overnight
A 50 percent chance of rain, mainly before 5am. Mostly cloudy, with a low around 41. West southwest wind around 7 mph.
Saturday
Sunny, with a high near 52. West southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Saturday Night
Areas of frost after 3am. Otherwise, clear, with a low around 35. Southwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming north northeast around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 39. North wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 59.
Monday Night
A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 45.
Tuesday
Rain. Cloudy, with a high near 56.
Tuesday Night
Rain. Mostly cloudy, with a low around 42.
Wednesday
Rain. Cloudy, with a high near 53. Breezy.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 36. Breezy.
Thursday
A chance of rain and snow. Snow level 2000 feet rising to 3100 feet in the afternoon. Partly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cascade Locks OR
 45.66°N 121.9°W (Elev. 102 ft)
Last Update:
11:41 pm PDT Mar 20, 2026
Forecast Valid:
12am PDT Mar 21, 2026-6pm PDT Mar 27, 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