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

Winter Weather in the Eastern U.S.; Heavy Rains Begin Across the Southern Plains into the Ohio Valley

A wintry mix may impact travel across portions of the Mid-Atlantic through the morning and the Northeast U.S. through Tuesday. Heavy rain and thunderstorms may cause a flooding threat across the Southern Plains into the Ohio Valley beginning Tuesday. Fire weather concerns will continue across portions of the central and southern High Plains through Wednesday. 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 96%
Wind Speed N 3 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 03 Mar 01:15 AM PST
Extended Forecast for

Cascade Summit OR

Winter Weather Advisory March 4, 04:00am until March 4, 10:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Patchy fog before 3am, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of rain between 3pm and 5pm. Snow level 6000 feet rising to 7000 feet in the afternoon. Increasing clouds, with a high near 49. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 49 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am, then snow, possibly mixed with rain. Snow level 6400 feet lowering to 5500 feet after midnight . Low around 33. Light west wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Chance Rain
    then
    Rain/Snow

  • Wednesday

    Wednesday: Snow. High near 36. West wind 5 to 9 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 36 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow. Low around 28. West wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Snow

  • Thursday

    Thursday: Snow. High near 35. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Snow

  • Thursday Night

    Thursday Night: Snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Snow Likely

  • Friday

    Friday: A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of rain after 4pm. Partly sunny, with a high near 40.

    High: 40 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain before 7pm, then a chance of rain and snow. Snow level 5900 feet. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Patchy fog before 3am, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 31. Calm wind.
Tuesday
A slight chance of rain between 3pm and 5pm. Snow level 6000 feet rising to 7000 feet in the afternoon. Increasing clouds, with a high near 49. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A chance of rain before 1am, then snow, possibly mixed with rain. Snow level 6400 feet lowering to 5500 feet after midnight . Low around 33. Light west wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday
Snow. High near 36. West wind 5 to 9 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow. Low around 28. West wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow. High near 35. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of rain after 4pm. Partly sunny, with a high near 40.
Friday Night
A chance of rain before 7pm, then a chance of rain and snow. Snow level 5900 feet. Mostly cloudy, with a low around 33.
Saturday
A slight chance of rain and snow before 10am. Snow level 6400 feet rising to 7700 feet in the afternoon. Partly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
A slight chance of rain. Snow level 7000 feet. Partly sunny, with a high near 48.
Sunday Night
A chance of rain and snow. Snow level 6700 feet lowering to 5500 feet after midnight . Mostly cloudy, with a low around 31.
Monday
Snow likely. Mostly cloudy, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cascade Summit OR
 43.58°N 122.05°W (Elev. 5030 ft)
Last Update:
2:06 am PST Mar 3, 2026
Forecast Valid:
2am PST Mar 3, 2026-6pm PDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation