Want to revisit 2025? Here's our year-end climate summary!

Our annual climate summary for Portland has been posted. Additional summaries for Astoria, Eugene, and Salem are available. For other climate summaries, visit our Observed Weather tab on our climate page. Read More >

Current conditions at

I84 WB at Cascade Locks MP44.57 (ODT78)

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

NA

38°F

3°C

Humidity 62%
Wind Speed E 8 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 18 Jan 01:52 PM PST
Extended Forecast for

9 Miles NNW Cascade Locks OR

  • This Afternoon

    This Afternoon: Sunny, with a high near 43. Southeast wind around 10 mph, with gusts as high as 23 mph.

    High: 43 °F

    Sunny

  • Tonight

    Tonight: Widespread frost before 3am, then widespread frost after 4am.  Otherwise, mostly clear, with a low around 30. East southeast wind 7 to 9 mph, with gusts as high as 26 mph.

    Low: 30 °F

    Frost

  • M.L.King Day

    M.L.King Day: Widespread frost before 10am.  Otherwise, sunny, with a high near 44. East southeast wind around 9 mph, with gusts as high as 25 mph.

    High: 44 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Widespread frost, mainly after 8pm.  Otherwise, mostly clear, with a low around 31. East wind around 6 mph becoming calm  after midnight.

    Low: 31 °F

    Frost

  • Tuesday

    Tuesday: Sunny, with a high near 45. East wind 3 to 7 mph. Winds could gust as high as 20 mph.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Areas of frost before 10pm.  Otherwise, partly cloudy, with a low around 30.

    Low: 30 °F

    Areas Frost
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Widespread frost, mainly after 9pm.  Otherwise, partly cloudy, with a low around 31.

    Low: 31 °F

    Frost

  • Thursday

    Thursday: A slight chance of rain after 10am.  Areas of frost before 10am. Snow level 2500 feet rising to 3300 feet in the afternoon.  Otherwise, partly sunny, with a high near 47.

    High: 47 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 43. Southeast wind around 10 mph, with gusts as high as 23 mph.
Tonight
Widespread frost before 3am, then widespread frost after 4am. Otherwise, mostly clear, with a low around 30. East southeast wind 7 to 9 mph, with gusts as high as 26 mph.
M.L.King Day
Widespread frost before 10am. Otherwise, sunny, with a high near 44. East southeast wind around 9 mph, with gusts as high as 25 mph.
Monday Night
Widespread frost, mainly after 8pm. Otherwise, mostly clear, with a low around 31. East wind around 6 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 45. East wind 3 to 7 mph. Winds could gust as high as 20 mph.
Tuesday Night
Areas of frost before 10pm. Otherwise, partly cloudy, with a low around 30.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Widespread frost, mainly after 9pm. Otherwise, partly cloudy, with a low around 31.
Thursday
A slight chance of rain after 10am. Areas of frost before 10am. Snow level 2500 feet rising to 3300 feet in the afternoon. Otherwise, partly sunny, with a high near 47.
Thursday Night
A chance of rain, mainly after 10pm. Snow level 3100 feet. Mostly cloudy, with a low around 35.
Friday
A chance of rain. Snow level 2900 feet. Partly sunny, with a high near 45.
Friday Night
Rain and snow likely. Snow level 2900 feet. Mostly cloudy, with a low around 34.
Saturday
Rain and snow likely. Snow level 2800 feet. Partly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Cascade Locks OR
 45.81°N 121.91°W (Elev. 1010 ft)
1:41 pm PST Jan 18, 2026
2pm PST Jan 18, 2026-6pm PST Jan 24, 2026
 
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