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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

68°F

20°C

Humidity 62%
Wind Speed NE 3 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 55°F (13°C)
Visibility 7.00 mi
Last update 28 Aug 08:15 PM PDT
Extended Forecast for

2 Miles N Prosser WA

  • Tonight

    Tonight: Mostly clear, with a low around 50. Calm wind becoming west around 6 mph.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 77. West wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Sunny

  • Sunday Night

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

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Calm wind becoming west around 6 mph.
Saturday
Mostly sunny, with a high near 77. West wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 44. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 79. Light and variable wind.
Sunday Night
Mostly clear, with a low around 48. Calm wind.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 51.
Wednesday
A chance of showers, mainly after 11am. Partly sunny, with a high near 78.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 45.
Thursday
A chance of showers. Partly sunny, with a high near 75.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 43.
Friday
A slight chance of showers. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Prosser WA
 46.23°N 119.76°W (Elev. 712 ft)
Last Update:
3:01 pm PDT Aug 28, 2026
Forecast Valid:
8pm PDT Aug 28, 2026-6pm PDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation