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

50°F

10°C

Humidity 83%
Wind Speed SSW 6 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Wind Chill48°F (9°C)
Last update 21 Mar 02:35 AM PDT
Extended Forecast for

Cascade Locks OR

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 5am. Mostly cloudy, with a low around 42. West southwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 51. Breezy, with a southwest wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Areas of frost after 3am. Otherwise, clear, with a low around 35. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.

    Low: 35 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 7am. Otherwise, mostly sunny, with a high near 57. Light and variable wind becoming northeast 5 to 7 mph in the afternoon.

    High: 57 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40. North wind 6 to 8 mph becoming west southwest in the evening.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Monday Night

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

    Low: 46 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. Cloudy, with a high near 54. Breezy.

    High: 54 °F

    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain. Mostly cloudy, with a low around 43. Breezy.

    Low: 43 °F

    Rain and
    Breezy

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 5am. Mostly cloudy, with a low around 42. West southwest wind around 11 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 51. Breezy, with a southwest wind 11 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Areas of frost after 3am. Otherwise, clear, with a low around 35. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Sunday
Areas of frost before 7am. Otherwise, mostly sunny, with a high near 57. Light and variable wind becoming northeast 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 40. North wind 6 to 8 mph becoming west southwest in the evening.
Monday
Partly sunny, with a high near 57.
Monday Night
A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 46.
Tuesday
Rain. Cloudy, with a high near 54. Breezy.
Tuesday Night
Rain. Mostly cloudy, with a low around 43. Breezy.
Wednesday
Rain. Cloudy, with a high near 52. Breezy.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 36. Breezy.
Thursday
A chance of rain. Snow level 2000 feet rising to 3100 feet in the afternoon. Partly sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
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 am PDT Mar 21, 2026
Forecast Valid:
2am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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