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

52°F

11°C

Humidity 85%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 20 Mar 05:35 AM PDT
Extended Forecast for

3 Miles WNW Cascade Locks OR

  • Overnight

    Overnight: A 20 percent chance of rain.  Partly cloudy, with a low around 52. West southwest wind around 8 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Slight Chance
    Rain

  • Friday

    Friday: Rain, mainly after 2pm.  High near 58. West southwest wind 10 to 14 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%.

    High: 58 °F

    Chance Rain
    then Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 2am.  Mostly cloudy, with a low around 40. West southwest wind around 10 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain Likely

  • Saturday

    Saturday: A 40 percent chance of rain before 11am.  Snow level 3300 feet lowering to 2200 feet. Mostly cloudy through mid morning, then gradual clearing, with a high near 49. West wind 10 to 14 mph, with gusts as high as 26 mph.

    High: 49 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 3am.  Otherwise, mostly clear, with a low around 32. West wind 9 to 14 mph becoming light  after midnight. Winds could gust as high as 26 mph.

    Low: 32 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost before 9am.  Otherwise, mostly sunny, with a high near 53.

    High: 53 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 4am.  Otherwise, mostly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain after 11pm.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

Detailed Forecast

Overnight
A 20 percent chance of rain. Partly cloudy, with a low around 52. West southwest wind around 8 mph, with gusts as high as 18 mph.
Friday
Rain, mainly after 2pm. High near 58. West southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Friday Night
Rain likely, mainly before 2am. Mostly cloudy, with a low around 40. West southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 40 percent chance of rain before 11am. Snow level 3300 feet lowering to 2200 feet. Mostly cloudy through mid morning, then gradual clearing, with a high near 49. West wind 10 to 14 mph, with gusts as high as 26 mph.
Saturday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32. West wind 9 to 14 mph becoming light after midnight. Winds could gust as high as 26 mph.
Sunday
Widespread frost before 9am. Otherwise, mostly sunny, with a high near 53.
Sunday Night
Areas of frost after 4am. Otherwise, mostly cloudy, with a low around 36.
Monday
Partly sunny, with a high near 56.
Monday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 42.
Tuesday
Rain. Mostly cloudy, with a high near 54.
Tuesday Night
Rain. Mostly cloudy, with a low around 38. Breezy.
Wednesday
Rain. Mostly cloudy, with a high near 45. Breezy.
Wednesday Night
A chance of rain and snow. Snow level 3600 feet lowering to 2100 feet after midnight . Mostly cloudy, with a low around 32. Breezy.
Thursday
A slight chance of rain and snow. Snow level 1700 feet rising to 2900 feet in the afternoon. Mostly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Cascade Locks OR
 45.7°N 121.94°W (Elev. 1257 ft)
5:41 am PDT Mar 20, 2026
5am PDT Mar 20, 2026-6pm PDT Mar 26, 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