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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
35°F
2°C
| Humidity | 70% |
| Wind Speed | E 5 MPH |
| Barometer | NA |
| Dewpoint | 26°F (-3°C) |
| Visibility | NA |
| Wind Chill | 31°F (-1°C) |
| Last update | 20 Jan 09:22 AM PST |
Extended Forecast for
5 Miles S Cascade Locks OR
Today
High: 42 °F
Mostly Sunny
Tonight
Low: 29 °F
Partly Cloudy
Wednesday
High: 40 °F
Mostly Sunny
Wednesday Night
Low: 28 °F
Mostly Clear
then FrostThursday
High: 40 °F
Frost then
Mostly SunnyThursday Night
Low: 30 °F
Frost
Friday
High: 42 °F
Frost then
SunnyFriday Night
Low: 28 °F
Frost
Saturday
High: 43 °F
Slight Chance
Rain/Snow
Detailed Forecast
Today
Mostly sunny, with a high near 42. East wind 6 to 8 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 29. East southeast wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 40. East wind around 5 mph.
Wednesday Night
Widespread frost after 3am. Otherwise, partly cloudy, with a low around 28. East wind 3 to 5 mph.
Thursday
Widespread frost between 7am and 8am. Otherwise, mostly sunny, with a high near 40. Calm wind.
Thursday Night
Widespread frost after 9pm. Otherwise, partly cloudy, with a low around 30.
Friday
Widespread frost, mainly before 10am. Otherwise, sunny, with a high near 42.
Friday Night
Widespread frost before 2am, then widespread frost after 3am. Otherwise, mostly clear, with a low around 28.
Saturday
A slight chance of rain and snow before 1pm, then a slight chance of rain. Snow level 1900 feet rising to 2900 feet in the afternoon. Mostly sunny, with a high near 43.
Saturday Night
A slight chance of rain before 4am, then a slight chance of rain and snow. Partly cloudy, with a low around 31.
Sunday
A chance of rain and snow. Partly sunny, with a high near 42.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 36.
Monday
A chance of rain. Partly sunny, with a high near 48.
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)
8:56 am PST Jan 20, 2026
9am PST Jan 20, 2026-6pm PST Jan 26, 2026
Additional Resources
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Hourly Weather Forecast
