Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

I84 WB at Cascade Locks MP44.57 (ODT78)

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

NA

58°F

14°C

Humidity 77%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 09 Sep 01:36 AM PDT
Extended Forecast for

4 Miles SW Cascade Locks OR

  • Overnight

    Overnight: Mostly clear, with a low around 55. East wind around 7 mph.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. East wind 5 to 7 mph becoming light and variable.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 57. Southwest wind 5 to 9 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 71. West wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 71 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. West southwest wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain, then showers likely and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 58.

    High: 58 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 55. East wind around 7 mph.
Wednesday
Sunny, with a high near 83. East wind 5 to 7 mph becoming light and variable.
Wednesday Night
Increasing clouds, with a low around 57. Southwest wind 5 to 9 mph.
Thursday
Mostly cloudy, with a high near 71. West wind 9 to 14 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 48. West southwest wind 8 to 13 mph, with gusts as high as 23 mph.
Friday
Mostly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
A chance of rain, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 58.
Saturday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 50.
Sunday
A chance of rain, mainly before 11am. Mostly cloudy, with a high near 63.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Cascade Locks OR
 45.63°N 121.93°W (Elev. 2418 ft)
1:41 am PDT Sep 9, 2026
1am PDT Sep 9, 2026-6pm PDT Sep 15, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database