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

Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Overcast

54°F

12°C

Humidity 71%
Wind Speed SSW 5 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 09 Dec 12:20 PM PST
Extended Forecast for

Pasco WA

  • This Afternoon

    This Afternoon: Rain, mainly after 1pm. High near 56. South wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Rain

  • Tonight

    Tonight: Rain, mainly before 7pm. Temperature falling to near 46 by midnight, then rising to around 56 during the remainder of the night. West wind 7 to 15 mph becoming south in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F⇑

    Rain then
    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 66. Southwest wind 18 to 21 mph, with gusts as high as 33 mph.

    High: 66 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 53. Southwest wind around 18 mph, with gusts as high as 30 mph.

    Low: 53 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 20 percent chance of rain. Mostly cloudy, with a high near 64. Southwest wind around 14 mph, with gusts as high as 24 mph.

    High: 64 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Rain, mainly after 1pm. High near 56. South wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly before 7pm. Temperature falling to near 46 by midnight, then rising to around 56 during the remainder of the night. West wind 7 to 15 mph becoming south in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 66. Southwest wind 18 to 21 mph, with gusts as high as 33 mph.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 53. Southwest wind around 18 mph, with gusts as high as 30 mph.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 64. Southwest wind around 14 mph, with gusts as high as 24 mph.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Partly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Partly sunny, with a high near 53.
Saturday Night
A slight chance of rain after 4am. Mostly cloudy, with a low around 39.
Sunday
A slight chance of rain. Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
A chance of rain. Mostly cloudy, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pasco WA
 46.26°N 119.11°W (Elev. 400 ft)
Last Update:
9:15 am PST Dec 9, 2025
Forecast Valid:
12pm PST Dec 9, 2025-6pm PST Dec 15, 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