Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

DEE FLAT (DEFO)

Lat: 45.58639°NLon: 121.64056°WElev: 1260.0ft.

NA

44°F

7°C

Humidity 73%
Wind Speed SW 4 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 31 Mar 04:15 PM PDT
Extended Forecast for

8 Miles E Cascade Locks OR

  • This Afternoon

    This Afternoon: A 40 percent chance of rain.  Mostly cloudy, with a high near 51. East wind around 6 mph.

    High: 51 °F

    Chance Rain

  • Tonight

    Tonight: Rain.  Low around 42. East wind around 6 mph becoming west northwest in the evening.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Chance Rain
    then Rain

  • Wednesday

    Wednesday: Rain, mainly before 4pm.  High near 50. East wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 39. West wind around 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain

  • Thursday

    Thursday: Rain.  Snow level 2100 feet rising to 3200 feet in the afternoon. High near 50. Windy, with a west wind 14 to 19 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 38 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Rain and
    Windy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 11pm.  Partly cloudy, with a low around 38. Windy.

    Low: 38 °F

    Slight Chance
    Rain and
    Windy then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of rain. Mostly cloudy, with a high near 51. East wind around 6 mph.
Tonight
Rain. Low around 42. East wind around 6 mph becoming west northwest in the evening. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain, mainly before 4pm. High near 50. East wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 39. West wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. Snow level 2100 feet rising to 3200 feet in the afternoon. High near 50. Windy, with a west wind 14 to 19 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 38. Windy.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 69.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Partly sunny, with a high near 63. Breezy.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E Cascade Locks OR
 45.71°N 121.7°W (Elev. 200 ft)
3:41 pm PDT Mar 31, 2026
4pm PDT Mar 31, 2026-6pm PDT Apr 7, 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