Hurricane Lowell to Impact Kauai; Heat Continues in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai today. Impacts such as high surf and heavy rain could impact all of the islands. A Hurricane Warning is in effect for Kauai, Niihau and the surrounding coastal waters. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest this week with limited nighttime relief. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

45°F

7°C

Humidity 95%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 08 Sep 05:35 AM PDT
Extended Forecast for

Prosser WA

  • Today

    Today: Areas of fog before 8am.  Otherwise, sunny, with a high near 79. Calm wind.

    High: 79 °F

    Areas Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Calm wind.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming west around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 11am.  Mostly sunny, with a high near 72.

    High: 72 °F

    Chance
    Showers

Detailed Forecast

Today
Areas of fog before 8am. Otherwise, sunny, with a high near 79. Calm wind.
Tonight
Mostly clear, with a low around 48. Calm wind.
Wednesday
Sunny, with a high near 84. Calm wind.
Wednesday Night
Mostly clear, with a low around 50. Calm wind.
Thursday
Sunny, with a high near 84. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 47.
Saturday
A 30 percent chance of showers after 11am. Mostly sunny, with a high near 72.
Saturday Night
A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 45.
Sunday
Sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
3:56 am PDT Sep 8, 2026
5am PDT Sep 8, 2026-6pm PDT Sep 14, 2026
 
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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