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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
33°F
1°C
| Humidity | 64% |
| Wind Speed | ENE 4 MPH |
| Barometer | NA |
| Dewpoint | 22°F (-6°C) |
| Visibility | NA |
| Wind Chill | 29°F (-2°C) |
| Last update | 21 Jan 10:18 PM PST |
Extended Forecast for
5 Miles S Cascade Locks OR
Tonight
Low: 27 °F
Frost
Thursday
High: 38 °F
Frost
Thursday Night
Low: 27 °F
Frost
Friday
High: 39 °F
Frost then
SunnyFriday Night
Low: 25 °F
Mostly Clear
Saturday
High: 41 °F
Sunny
Saturday Night
Low: 27 °F
Mostly Clear
Sunday
High: 42 °F
Mostly Sunny
Sunday Night
Low: 31 °F
Mostly Cloudy
then Slight
Chance Snow
Detailed Forecast
Tonight
Widespread frost. Otherwise, mostly clear, with a low around 27. East southeast wind 3 to 5 mph.
Thursday
Widespread frost, mainly before noon. Otherwise, increasing clouds, with a high near 38. Calm wind.
Thursday Night
Widespread frost after 7pm. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 27. Calm wind becoming east around 5 mph after midnight.
Friday
Widespread frost before 9am. Otherwise, sunny, with a high near 39. East wind around 7 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 25. East wind around 6 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 41.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
A slight chance of snow after 4am. Snow level 2000 feet. Mostly cloudy, with a low around 31.
Monday
A slight chance of rain and snow before 10am, then a slight chance of rain. Snow level 2400 feet rising to 3400 feet in the afternoon. Partly sunny, with a high near 46.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 33.
Tuesday
A slight chance of rain and snow. Mostly sunny, with a high near 45.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 33.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 44.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles S Cascade Locks OR
45.62°N 121.89°W (Elev. 833 ft)
45.62°N 121.89°W (Elev. 833 ft)
9:41 pm PST Jan 21, 2026
10pm PST Jan 21, 2026-6pm PST Jan 28, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
