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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
31°F
-1°C
| Humidity | 77% |
| Wind Speed | S 3 MPH |
| Barometer | NA |
| Dewpoint | 25°F (-4°C) |
| Visibility | NA |
| Last update | 20 Jan 03:22 AM PST |
Extended Forecast for
3 Miles WNW Cascade Locks OR
Overnight
Low: 29 °F
Partly Cloudy
Tuesday
High: 37 °F
Mostly Sunny
and BreezyTuesday Night
Low: 28 °F
Partly Cloudy
and BlusteryWednesday
High: 37 °F
Mostly Sunny
and BreezyWednesday Night
Low: 27 °F
Partly Cloudy
Thursday
High: 38 °F
Mostly Sunny
Thursday Night
Low: 28 °F
Frost
Friday
High: 39 °F
Sunny
Friday Night
Low: 27 °F
Mostly Clear
Detailed Forecast
Overnight
Partly cloudy, with a low around 29. Northeast wind around 9 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 37. Breezy, with a northeast wind 16 to 18 mph, with gusts as high as 34 mph.
Tuesday Night
Partly cloudy, with a low around 28. Blustery, with a northeast wind around 16 mph, with gusts as high as 32 mph.
Wednesday
Mostly sunny, with a high near 37. Breezy, with an east northeast wind around 15 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 27. East northeast wind 11 to 13 mph, with gusts as high as 26 mph.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Widespread frost before 9pm, then widespread frost after 10pm. Otherwise, partly cloudy, with a low around 28.
Friday
Sunny, with a high near 39.
Friday Night
Mostly clear, with a low around 27.
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 41.
Saturday Night
A chance of rain and snow. Snow level 2900 feet. Partly cloudy, with a low around 29.
Sunday
A chance of rain and snow. Snow level 3000 feet rising to 3800 feet in the afternoon. Partly sunny, with a high near 40.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 35.
Monday
A chance of rain. Partly sunny, with a high near 45.
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)
2:41 am PST Jan 20, 2026
3am PST Jan 20, 2026-6pm PST Jan 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
