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

MANSON (MASW)

Lat: 47.91694°NLon: 120.12444°WElev: 1972.0ft.

NA

42°F

6°C

Humidity 95%
Wind Speed E 2 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 08 Dec 06:00 PM PST
Extended Forecast for

13 Miles ESE Trinity WA

Flood Watch December 8, 07:24pm until December 11, 04:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 8, 07:24pm until December 11, 04:00pm

    NOW until 4:00pm Thu

    Flood Watch

  • Tonight

    Low: 30 °F

    Rain/Snow

  • Tuesday

    Tuesday: A slight chance of snow before 7am, then a chance of snow after 1pm.  Increasing clouds, with a high near 34. West wind 6 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 50%. New snow accumulation of 1 to 3 inches possible.

    High: 34 °F

    Slight Chance
    Snow then
    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow before 1am, then rain. The rain and snow could be heavy at times.  Temperature rising to around 38 by 4am. West wind around 6 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 31 °F

    Heavy Snow
    then
    Rain/Snow

  • Wednesday

    Wednesday: Rain before 7am, then rain, possibly mixed with snow.  High near 40. West wind around 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow.  Low around 34. West wind around 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow.  High near 37. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 37 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow.  Mostly cloudy, with a low around 33. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow.  Mostly cloudy, with a high near 39. Chance of precipitation is 40%.

    High: 39 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Rain and snow before 1am, then a chance of snow. The rain could be heavy at times. Low around 30. West wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.
Tuesday
A slight chance of snow before 7am, then a chance of snow after 1pm. Increasing clouds, with a high near 34. West wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow before 1am, then rain. The rain and snow could be heavy at times. Temperature rising to around 38 by 4am. West wind around 6 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Wednesday
Rain before 7am, then rain, possibly mixed with snow. High near 40. West wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow. Low around 34. West wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
Rain and snow. High near 37. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
Friday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 35.
Saturday
A chance of rain and snow before 1pm, then a chance of rain between 1pm and 4pm, then a chance of rain and snow after 4pm. Partly sunny, with a high near 38. Chance of precipitation is 40%.
Saturday Night
Rain and snow likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Sunday
Snow likely, possibly mixed with rain. Mostly cloudy, with a high near 35. Chance of precipitation is 60%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Monday
Snow likely, possibly mixed with rain. Mostly cloudy, with a high near 35. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ESE Trinity WA
 48.01°N 120.56°W (Elev. 4557 ft)
3:17 pm PST Dec 8, 2025
7pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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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