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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
44°F
7°C
| Humidity | 91% |
| Wind Speed | N 0 MPH |
| Barometer | NA |
| Dewpoint | 41°F (5°C) |
| Visibility | NA |
| Last update | 29 Jan 05:28 PM PST |
Extended Forecast for
9 Miles NNW Cascade Locks OR
Tonight
Low: 40 °F
Rain then
Mostly CloudyFriday
High: 49 °F
Rain
Friday Night
Low: 43 °F
Rain then
Chance Rain
and Patchy
FogSaturday
High: 53 °F
Slight Chance
Rain and
Patchy Fog
then Mostly
CloudySaturday Night
Low: 40 °F
Slight Chance
Rain then
Rain LikelySunday
High: 48 °F
Rain
Sunday Night
Low: 41 °F
Rain Likely
then Chance
RainMonday
High: 50 °F
Chance Rain
Monday Night
Low: 39 °F
Slight Chance
Rain then
Partly Cloudy
Detailed Forecast
Tonight
Rain, mainly before 10pm. Low around 40. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, mainly after 11am. High near 49. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain, mainly before 10pm. Patchy fog after midnight. Low around 43. Calm wind. Chance of precipitation is 80%.
Saturday
A 20 percent chance of rain before 10am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 53. Calm wind becoming east around 6 mph in the afternoon.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 40. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
Rain. High near 48. Chance of precipitation is 80%.
Sunday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Monday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 50.
Monday Night
A slight chance of rain before 10pm. Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 54.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 55.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
9 Miles NNW Cascade Locks OR
45.81°N 121.91°W (Elev. 1010 ft)
45.81°N 121.91°W (Elev. 1010 ft)
5:41 pm PST Jan 29, 2026
6pm PST Jan 29, 2026-6pm PST Feb 5, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
