National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

I84 WB at Cascade Locks MP44.57 (ODT78)

Lat: 45.66931°NLon: 121.88484°WElev: 194.0ft.

NA

20°C

68°F

Humidity 65%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 13°C (56°F)
Visibility NA
Last update 21 Jul 12:20 AM PDT
Extended Forecast for

Cascade Locks OR

Heat Advisory July 21, 10:00am until July 22, 11:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Patchy smoke. Mostly cloudy, with a low around 20. Calm wind.

    Low: 20 °C

    Patchy Smoke

  • Tuesday

    Tuesday: Patchy smoke. Mostly sunny, with a high near 37. Calm wind becoming west southwest 5 to 10 km/h in the afternoon.

    High: 37 °C

    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke. Partly cloudy, with a low around 22. Southwest wind 5 to 10 km/h becoming calm after midnight.

    Low: 22 °C

    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke before 4pm. Sunny and hot, with a high near 39. Light southwest wind becoming west 6 to 11 km/h in the afternoon.

    High: 39 °C

    Patchy Smoke

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 20. West southwest wind 11 to 14 km/h.

    Low: 20 °C

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before 11am. Mostly sunny, with a high near 31.

    High: 31 °C

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 17. Breezy.

    Low: 17 °C

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 31.

    High: 31 °C

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 16.

    Low: 16 °C

    Mostly Clear

Detailed Forecast

Overnight
Patchy smoke. Mostly cloudy, with a low around 20. Calm wind.
Tuesday
Patchy smoke. Mostly sunny, with a high near 37. Calm wind becoming west southwest 5 to 10 km/h in the afternoon.
Tuesday Night
Patchy smoke. Partly cloudy, with a low around 22. Southwest wind 5 to 10 km/h becoming calm after midnight.
Wednesday
Patchy smoke before 4pm. Sunny and hot, with a high near 39. Light southwest wind becoming west 6 to 11 km/h in the afternoon.
Wednesday Night
A 40 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 20. West southwest wind 11 to 14 km/h.
Thursday
A 30 percent chance of showers before 11am. Mostly sunny, with a high near 31.
Thursday Night
Mostly clear, with a low around 17. Breezy.
Friday
Sunny, with a high near 31.
Friday Night
Mostly clear, with a low around 16.
Saturday
Sunny, with a high near 27.
Saturday Night
Mostly clear, with a low around 15.
Sunday
Sunny, with a high near 28.
Sunday Night
Mostly clear, with a low around 14.
Monday
Sunny, with a high near 27.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cascade Locks OR
 45.66°N 121.87°W (Elev. 732 m)
Last Update:
12:41 am PDT Jul 21, 2026
Forecast Valid:
12am PDT Jul 21, 2026-6pm PDT Jul 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation