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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
36°F
2°C
| Humidity | 58% |
| Wind Speed | E 8 MPH |
| Barometer | NA |
| Dewpoint | 22°F (-6°C) |
| Visibility | NA |
| Wind Chill | 30°F (-1°C) |
| Last update | 21 Jan 11:22 AM PST |
Extended Forecast for
3 Miles WNW Cascade Locks OR
Today
High: 35 °F
Sunny and
BreezyTonight
Low: 26 °F
Mostly Clear
Thursday
High: 35 °F
Mostly Sunny
Thursday Night
Low: 25 °F
Partly Cloudy
Friday
High: 37 °F
Sunny and
BreezyFriday Night
Low: 25 °F
Clear and
BreezySaturday
High: 38 °F
Sunny
Saturday Night
Low: 25 °F
Frost
Sunday
High: 39 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 35. Breezy, with an east northeast wind around 16 mph, with gusts as high as 32 mph.
Tonight
Mostly clear, with a low around 26. Northeast wind 11 to 13 mph, with gusts as high as 28 mph.
Thursday
Mostly sunny, with a high near 35. East northeast wind 9 to 11 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 25. East wind 8 to 10 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 37. Breezy, with an east wind 14 to 16 mph, with gusts as high as 30 mph.
Friday Night
Clear, with a low around 25. Breezy.
Saturday
Sunny, with a high near 38.
Saturday Night
Widespread frost. Otherwise, mostly clear, with a low around 25.
Sunday
Mostly sunny, with a high near 39.
Sunday Night
A chance of rain and snow, mainly after 4am. Snow level 2700 feet. Mostly cloudy, with a low around 30.
Monday
A chance of rain. Snow level 3300 feet rising to 3800 feet in the afternoon. Partly sunny, with a high near 41.
Monday Night
A slight chance of rain. Widespread frost. Otherwise, mostly cloudy, with a low around 33.
Tuesday
A slight chance of rain. Partly sunny, with a high near 42.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WNW Cascade Locks OR
45.7°N 121.94°W (Elev. 1257 ft)
45.7°N 121.94°W (Elev. 1257 ft)
10:41 am PST Jan 21, 2026
11am PST Jan 21, 2026-6pm PST Jan 27, 2026
Additional Resources
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