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Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.

Clear

42°F

6°C

Humidity 93%
Wind Speed NNE 4 MPH
Barometer 29.56 in (1001.02 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 14 Nov 01:15 AM PST
Extended Forecast for

Prosser WA

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 39. South wind around 10 mph.

    Low: 39 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, increasing clouds, with a high near 60. South wind 5 to 9 mph.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Rain likely, mainly between 10pm and 4am. Mostly cloudy, with a low around 41. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Slight Chance
    Rain then
    Rain Likely

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before 10am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 57. South wind 3 to 6 mph.

    High: 57 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 36. Light southwest wind.

    Low: 36 °F

    Patchy Fog

  • Monday

    Monday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after 4am. Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 39. South wind around 10 mph.
Saturday
Patchy fog before 7am. Otherwise, increasing clouds, with a high near 60. South wind 5 to 9 mph.
Saturday Night
Rain likely, mainly between 10pm and 4am. Mostly cloudy, with a low around 41. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 40 percent chance of rain, mainly before 10am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 57. South wind 3 to 6 mph.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 36. Light southwest wind.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
A 30 percent chance of rain after 4am. Partly cloudy, with a low around 30.
Wednesday
Rain likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 46.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
Last Update:
10:46 pm PST Nov 13, 2026
Forecast Valid:
1am PST Nov 14, 2026-6pm PST Nov 20, 2026
 
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Additional Resources

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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