Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Joseph State Airport AWOS (KJSY)

Lat: 45.355889°NLon: 117.254083°WElev: 4120.0ft.

Overcast

46°F

8°C

Humidity 76%
Wind Speed ENE 9 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 09 Dec 12:15 AM PST
Extended Forecast for

19 Miles NW Halfway OR

  • Overnight

    Overnight: Rain, possibly mixed with snow.  Low around 32. West wind 11 to 16 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 32 °F

    Rain/Snow

  • Tuesday

    Tuesday: Snow, possibly mixed with rain.  Snow level 7400 feet lowering to 6400 feet in the afternoon . High near 36. West wind 6 to 13 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 36 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow, becoming all rain after 1am.  Temperature rising to around 38 by 2am. West wind 6 to 8 mph.  Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 33 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain.  High near 40. Southwest wind around 9 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 35. West wind around 7 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain.  Mostly cloudy, with a high near 38.

    High: 38 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain, possibly mixed with snow. Low around 32. West wind 11 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.
Tuesday
Snow, possibly mixed with rain. Snow level 7400 feet lowering to 6400 feet in the afternoon . High near 36. West wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Tuesday Night
Rain, possibly mixed with snow, becoming all rain after 1am. Temperature rising to around 38 by 2am. West wind 6 to 8 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Wednesday
Rain. High near 40. Southwest wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 35. West wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 38.
Thursday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 40.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 38.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 28.
Sunday
A chance of snow. Partly sunny, with a high near 35.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 28.
Monday
Snow likely. Mostly cloudy, with a high near 35.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles NW Halfway OR
 45.09°N 117.37°W (Elev. 6122 ft)
10:35 pm PST Dec 8, 2025
12am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database