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

Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Hazardous Weather Conditions

Current conditions at

BLACK ROCK (OKFO3)

Lat: 43.52831°NLon: 121.81601°WElev: 4891.0ft.

NA

34°F

1°C

Humidity 100%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 31 Mar 12:15 AM PDT
Extended Forecast for

2 Miles NW Cascade Summit OR

Winter Storm Watch April 1, 05:00am until April 2, 05:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Overnight

    Overnight: Rain likely, possibly mixed with snow before 2am, then rain. Snow level 6200 feet. Steady temperature around 38. Light and variable wind becoming south southwest around 5 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow

  • Tuesday

    Tuesday: Rain, possibly mixed with snow. Snow level 5800 feet. High near 44. West southwest wind 6 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 44 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow likely before midnight, then snow. Snow level 5800 feet lowering to 5000 feet after midnight . Low around 33. West wind 7 to 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow
    Likely then
    Snow

  • Wednesday

    Wednesday: Snow before 8am, then snow, possibly mixed with rain. Snow level 5100 feet. High near 38. South southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 38 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Low around 24. West southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    Low: 24 °F

    Heavy Snow

  • Thursday

    Thursday: Snow. High near 34. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 34 °F

    Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow before 11pm. Partly cloudy, with a low around 21. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain likely, possibly mixed with snow before 2am, then rain. Snow level 6200 feet. Steady temperature around 38. Light and variable wind becoming south southwest around 5 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday
Rain, possibly mixed with snow. Snow level 5800 feet. High near 44. West southwest wind 6 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday Night
Rain and snow likely before midnight, then snow. Snow level 5800 feet lowering to 5000 feet after midnight . Low around 33. West wind 7 to 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday
Snow before 8am, then snow, possibly mixed with rain. Snow level 5100 feet. High near 38. South southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 24. West southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Thursday
Snow. High near 34. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
A 40 percent chance of snow before 11pm. Partly cloudy, with a low around 21. New snow accumulation of less than a half inch possible.
Friday
Sunny, with a high near 49.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 37.
Monday
A slight chance of rain. Snow level 7300 feet rising to 7900 feet in the afternoon. Mostly sunny, with a high near 62.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Cascade Summit OR
 43.58°N 122.05°W (Elev. 5030 ft)
Last Update:
12:27 am PDT Mar 31, 2026
Forecast Valid:
12am PDT Mar 31, 2026-6pm PDT Apr 6, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation