Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. Read More >

Current conditions at

BLACK ROCK (OKFO3)

Lat: 43.52828°NLon: 121.816°WElev: 4891.0ft.

NA

35°F

2°C

Humidity 90%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 13 Apr 08:15 PM PDT
Extended Forecast for

Cascade Summit OR

Winter Weather Advisory April 14, 11:00pm until April 16, 05:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: Mostly cloudy, with a low around 27. West northwest wind 5 to 7 mph.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, mainly after 5pm.  High near 44. Light west northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 23 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Mostly Sunny
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow, becoming all snow after 8pm.  Low around 31. West wind 8 to 10 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 31 °F

    Rain/Snow
    then Snow

  • Wednesday

    Wednesday: Snow. The snow could be heavy at times.  High near 35. West wind around 11 mph, with gusts as high as 34 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 35 °F

    Heavy Snow

  • Wednesday Night

    Wednesday Night: Snow showers.  Low around 21. West wind 6 to 11 mph, with gusts as high as 28 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 21 °F

    Snow Showers

  • Thursday

    Thursday: Snow.  High near 34. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm.  Partly cloudy, with a low around 20. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Friday Night

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

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. West northwest wind 5 to 7 mph.
Tuesday
Rain, possibly mixed with snow, mainly after 5pm. High near 44. Light west northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain and snow, becoming all snow after 8pm. Low around 31. West wind 8 to 10 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday
Snow. The snow could be heavy at times. High near 35. West wind around 11 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Wednesday Night
Snow showers. Low around 21. West wind 6 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow. High near 34. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 20. New snow accumulation of less than a half inch possible.
Friday
Sunny, with a high near 46.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
A slight chance of rain after 11am. Snow level rising to 6300 feet in the afternoon. Partly sunny, with a high near 51.
Saturday Night
A chance of rain and snow. Snow level 6700 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 33.
Sunday
Rain and snow likely. Snow level 5300 feet. Mostly cloudy, with a high near 44.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 30.
Monday
Rain and snow likely. Mostly cloudy, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
Cascade Summit OR
 43.58°N 122.05°W (Elev. 5030 ft)
6:37 pm PDT Apr 13, 2026
8pm PDT Apr 13, 2026-6pm PDT Apr 20, 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