National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Clear

55°F

13°C

Humidity 62%
Wind Speed WSW 14 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 07 Dec 05:20 PM PST
Extended Forecast for

Pasco WA

Wind Advisory December 8, 07:00pm until December 9, 07:00am
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Increasing clouds, with a low around 47. Southwest wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Monday

    Monday: Rain likely, mainly between 10am and 1pm. Cloudy, with a high near 61. Southwest wind 8 to 16 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Rain Likely

  • Monday Night

    Monday Night: A 50 percent chance of rain. Cloudy, with a low around 51. Breezy, with a southwest wind around 22 mph, with gusts as high as 43 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance Rain
    and Breezy

  • Tuesday

    Tuesday: Rain likely. Cloudy, with a high near 57. South wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain. Low around 48. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Rain

  • Wednesday

    Wednesday: Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.

    High: 60 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 47. Southwest wind 9 to 13 mph, with gusts as high as 24 mph.
Monday
Rain likely, mainly between 10am and 1pm. Cloudy, with a high near 61. Southwest wind 8 to 16 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 50 percent chance of rain. Cloudy, with a low around 51. Breezy, with a southwest wind around 22 mph, with gusts as high as 43 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely. Cloudy, with a high near 57. South wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 48. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 49.
Thursday
A 40 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 56.
Thursday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 43.
Friday
Mostly cloudy, with a high near 54.
Friday Night
Mostly cloudy, with a low around 42.
Saturday
Mostly cloudy, with a high near 53.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 42.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pasco WA
 46.24°N 119.11°W (Elev. 397 ft)
Last Update:
3:20 pm PST Dec 7, 2025
Forecast Valid:
5pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation