Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

BLACK ROCK (OKFO3)

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

NA

37°F

3°C

Humidity 93%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 07 Dec 08:15 PM PST
Extended Forecast for

2 Miles NE Cascade Summit OR

  • Tonight

    Tonight: Rain.  Snow level 7000 feet. Low around 36. West wind around 6 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%.

    Low: 36 °F

    Rain

  • Monday

    Monday: Rain.  High near 43. West southwest wind 6 to 8 mph, with gusts as high as 22 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Low around 38. West southwest wind around 16 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain

  • Tuesday

    Tuesday: Rain.  High near 44. West southwest wind around 14 mph, with gusts as high as 26 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 42. West southwest wind around 11 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 45. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 10pm.  Mostly cloudy, with a low around 39. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain Likely
    then Chance
    Rain

  • Thursday

    Thursday: A chance of rain, mainly before 4pm.  Patchy fog after 4pm.  Otherwise, partly sunny, with a high near 48.

    High: 48 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: A slight chance of rain before 10pm.  Patchy fog before 3am, then patchy fog after 5am. Snow level 7900 feet.  Otherwise, partly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Patchy
    Fog

Detailed Forecast

Tonight
Rain. Snow level 7000 feet. Low around 36. West wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Monday
Rain. High near 43. West southwest wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain. Low around 38. West southwest wind around 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain. High near 44. West southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 42. West southwest wind around 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 45. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 39. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of rain, mainly before 4pm. Patchy fog after 4pm. Otherwise, partly sunny, with a high near 48.
Thursday Night
A slight chance of rain before 10pm. Patchy fog before 3am, then patchy fog after 5am. Snow level 7900 feet. Otherwise, partly cloudy, with a low around 34.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 53.
Friday Night
Mostly clear, with a low around 34.
Saturday
A slight chance of rain. Snow level 6600 feet rising to 7300 feet in the afternoon. Mostly sunny, with a high near 52.
Saturday Night
A chance of rain. Snow level 7000 feet lowering to 6500 feet after midnight . Mostly cloudy, with a low around 34.
Sunday
A chance of rain. Snow level 6400 feet. Partly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Cascade Summit OR
 43.59°N 122.02°W (Elev. 4790 ft)
3:41 pm PST Dec 7, 2025
9pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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