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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Hazardous Weather Conditions

Current conditions at

Tri-Cities Airport (KPSC)

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

Mist

34°F

1°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.28 in (1025.4 mb)
Dewpoint 34°F (1°C)
Visibility 1.00 mi
Last update 21 Nov 08:20 AM PST
Extended Forecast for

Prosser WA

Freezing Fog Advisory until November 21, 10:00am
Click here for hazard details and duration
...
  •  
    Freezing Fog Advisory until November 21, 10:00am

    NOW until 10:00am Fri

    Freezing Fog Advisory

  • Today

    High: 46 °F

    Patchy
    Freezing Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Patchy fog before 10pm. Patchy freezing fog after 10pm. Otherwise, partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Patchy
    Freezing Fog
    and Patchy
    Fog

  • Saturday

    Saturday: Patchy freezing fog before 10am. Partly sunny, with a high near 45. Calm wind.

    High: 45 °F

    Patchy
    Freezing Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 50. Calm wind becoming south 5 to 7 mph in the morning.

    High: 50 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly before 10pm. Mostly clear, with a low around 29.

    Low: 29 °F

    Chance Rain

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Today
Patchy freezing fog before 10am. Partly sunny, with a high near 46. Light south wind.
Tonight
Patchy fog before 10pm. Patchy freezing fog after 10pm. Otherwise, partly cloudy, with a low around 28. Calm wind.
Saturday
Patchy freezing fog before 10am. Partly sunny, with a high near 45. Calm wind.
Saturday Night
Mostly cloudy, with a low around 31. Calm wind.
Sunday
A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 50. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
A 30 percent chance of rain, mainly before 10pm. Mostly clear, with a low around 29.
Monday
Sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 29.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 41.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 31.
Thanksgiving Day
A chance of rain. Mostly cloudy, with a high near 45.
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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:
8:30 am PST Nov 21, 2025
Forecast Valid:
8am PST Nov 21, 2025-6pm PST Nov 27, 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