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

55°F

13°C

Humidity 42%
Wind Speed SW 6 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 21 Mar 03:15 PM PDT
Extended Forecast for

8 Miles NW Cascade Locks OR

  • This Afternoon

    This Afternoon: Sunny, with a high near 46. West wind 11 to 13 mph, with gusts as high as 29 mph.

    High: 46 °F

    Sunny

  • Tonight

    Tonight: Widespread frost, mainly after 11pm.  Otherwise, mostly clear, with a low around 30. West wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 24 mph.

    Low: 30 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 9am.  Otherwise, sunny, with a high near 52. Light and variable wind becoming east around 6 mph in the afternoon.

    High: 52 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34. Northeast wind around 6 mph.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 52. West northwest wind around 7 mph becoming east northeast in the morning.

    High: 52 °F

    Partly Sunny

  • Monday Night

    Monday Night: Showers likely after 11pm.  Mostly cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers.  High near 47. Chance of precipitation is 100%.

    High: 47 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain.  Cloudy, with a low around 37. Breezy.

    Low: 37 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: Rain.  Snow level 3600 feet. Cloudy, with a high near 45. Breezy.

    High: 45 °F

    Rain and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 46. West wind 11 to 13 mph, with gusts as high as 29 mph.
Tonight
Widespread frost, mainly after 11pm. Otherwise, mostly clear, with a low around 30. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 24 mph.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 52. Light and variable wind becoming east around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 34. Northeast wind around 6 mph.
Monday
Partly sunny, with a high near 52. West northwest wind around 7 mph becoming east northeast in the morning.
Monday Night
Showers likely after 11pm. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Tuesday
Showers. High near 47. Chance of precipitation is 100%.
Tuesday Night
Rain. Cloudy, with a low around 37. Breezy.
Wednesday
Rain. Snow level 3600 feet. Cloudy, with a high near 45. Breezy.
Wednesday Night
Rain likely before 8pm, then rain and snow likely. Snow level 3500 feet lowering to 1900 feet after midnight . Mostly cloudy, with a low around 31. Breezy.
Thursday
A chance of rain and snow. Snow level rising to 2900 feet in the afternoon. Partly sunny, with a high near 48.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Cascade Locks OR
 45.75°N 122.02°W (Elev. 1857 ft)
2:41 pm PDT Mar 21, 2026
3pm PDT Mar 21, 2026-6pm PDT Mar 27, 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