
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
37°F
3°C
| Humidity | 66% |
| Wind Speed | NE 4 MPH |
| Barometer | NA |
| Dewpoint | 26°F (-3°C) |
| Visibility | NA |
| Wind Chill | 34°F (1°C) |
| Last update | 17 Jan 07:02 PM PST |
Extended Forecast for
6 Miles S Cascade Locks OR
Tonight

Low: 32 °F
Frost
Sunday

High: 45 °F
Frost then
SunnySunday Night

Low: 33 °F
Mostly Clear
then FrostM.L.King Day

High: 45 °F
Frost then
SunnyMonday Night

Low: 34 °F
Mostly Clear
Tuesday

High: 49 °F
Mostly Sunny
Tuesday Night

Low: 34 °F
Areas Frost
then Partly
CloudyWednesday

High: 47 °F
Partly Sunny
Wednesday Night
Low: 33 °F
Areas Frost
then Slight
Chance Rain
Detailed Forecast
Tonight
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 32. East southeast wind around 6 mph, with gusts as high as 21 mph.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 45. East wind 3 to 5 mph.
Sunday Night
Widespread frost after 5am. Otherwise, mostly clear, with a low around 33. East wind 3 to 5 mph. Winds could gust as high as 20 mph.
M.L.King Day
Widespread frost between 7am and 8am. Otherwise, sunny, with a high near 45. East wind around 5 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 34. Light east wind.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Areas of frost before 9pm. Otherwise, partly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
A slight chance of rain after 4am. Areas of frost before 9pm. Otherwise, partly cloudy, with a low around 33.
Thursday
A chance of rain, mainly after 10am. Mostly sunny, with a high near 46.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38.
Friday
Rain likely. Mostly cloudy, with a high near 45.
Friday Night
Rain likely. Snow level 3200 feet. Mostly cloudy, with a low around 37.
Saturday
Rain likely, possibly mixed with snow. Snow level 2800 feet. Mostly cloudy, with a high near 45.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
6 Miles S Cascade Locks OR
45.6°N 121.88°W (Elev. 1142 ft)
45.6°N 121.88°W (Elev. 1142 ft)
6:46 pm PST Jan 17, 2026
7pm PST Jan 17, 2026-6pm PST Jan 24, 2026


