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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

64°F

18°C

Humidity 55%
Wind Speed SW 10 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 15 Nov 10:35 AM PST
Extended Forecast for

Prosser WA

  • Today

    Today: Partly sunny, with a high near 64. South wind around 7 mph.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Sunday

    Sunday: A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 57. Light and variable wind.

    High: 57 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Chance Rain

  • Monday

    Monday: A 20 percent chance of rain. Mostly cloudy, with a high near 57. Southwest wind 3 to 7 mph.

    High: 57 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 64. South wind around 7 mph.
Tonight
Patchy fog after 10pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 42. Calm wind.
Sunday
A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 57. Light and variable wind.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 42. Calm wind.
Monday
A 20 percent chance of rain. Mostly cloudy, with a high near 57. Southwest wind 3 to 7 mph.
Monday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 52.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 33.
Thursday
A chance of rain. Partly sunny, with a high near 49.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 31.
Friday
Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
Last Update:
9:15 am PST Nov 15, 2025
Forecast Valid:
10am PST Nov 15, 2025-6pm PST Nov 21, 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