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

61°F

16°C

Humidity 55%
Wind Speed SW 18 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 07 Dec 02:15 PM PST
Extended Forecast for

2 Miles SSE Pasco WA

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

  • This Afternoon

    This Afternoon: A 20 percent chance of rain. Cloudy early, then clearing, with a high near 57. Southwest wind around 14 mph, with gusts as high as 26 mph.

    High: 57 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Increasing clouds, with a low around 47. Southwest wind 10 to 13 mph, with gusts as high as 23 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 17 mph, with gusts as high as 39 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 22 to 24 mph, with gusts as high as 44 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 25 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. Chance of precipitation is 90%.

    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

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Cloudy early, then clearing, with a high near 57. Southwest wind around 14 mph, with gusts as high as 26 mph.
Tonight
Increasing clouds, with a low around 47. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Monday
Rain likely, mainly between 10am and 1pm. Cloudy, with a high near 61. Southwest wind 8 to 17 mph, with gusts as high as 39 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 22 to 24 mph, with gusts as high as 44 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 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 48. Chance of precipitation is 90%.
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 slight 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.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Pasco WA
 46.2°N 119.1°W (Elev. 358 ft)
Last Update:
2:30 pm PST Dec 7, 2025
Forecast Valid:
2pm PST Dec 7, 2025-6pm PST Dec 13, 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