Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

BLACK ROCK (OKFO3)

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

NA

34°F

1°C

Humidity 70%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 27 Dec 01:15 PM PST
Extended Forecast for

2 Miles N Cascade Summit OR

  • This Afternoon

    This Afternoon: A 20 percent chance of snow before 2pm.  Partly sunny, with a high near 25. West northwest wind 11 to 14 mph, with gusts as high as 20 mph.

    High: 25 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: A slight chance of snow between midnight and 2am.  Mostly cloudy, then gradually becoming mostly clear, with a low around 15. Northwest wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 15 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 33. East southeast wind around 5 mph becoming calm  in the afternoon.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. East southeast wind around 5 mph.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. East southeast wind around 6 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of snow before 2pm. Partly sunny, with a high near 25. West northwest wind 11 to 14 mph, with gusts as high as 20 mph.
Tonight
A slight chance of snow between midnight and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 15. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 33. East southeast wind around 5 mph becoming calm in the afternoon.
Sunday Night
Mostly cloudy, with a low around 22. East southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 40. East southeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 28.
Wednesday
Sunny, with a high near 46.
Wednesday Night
A slight chance of rain and snow after 4am. Snow level 6500 feet lowering to 5600 feet after midnight . Partly cloudy, with a low around 28.
New Year's Day
Rain and snow likely. Partly sunny, with a high near 41.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 27.
Friday
Snow. Mostly cloudy, with a high near 36.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Cascade Summit OR
 43.61°N 122.03°W (Elev. 5538 ft)
12:41 pm PST Dec 27, 2025
1pm PST Dec 27, 2025-6pm PST Jan 2, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database