News Headlines
Current conditions at
Sunnyside Municipal Airport (K1S5)
Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.
Clear
69°F
21°C
| Humidity | 51% |
| Wind Speed | N 0 MPH |
| Barometer | 29.98 in (1015.24 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Last update | 28 Aug 10:35 AM PDT |
Extended Forecast for
Prosser WA
Today
High: 85 °F
Sunny
Tonight
Low: 50 °F
Mostly Clear
Saturday
High: 78 °F
Mostly Sunny
Saturday Night
Low: 44 °F
Partly Cloudy
Sunday
High: 80 °F
Sunny
Sunday Night
Low: 48 °F
Mostly Clear
Monday
High: 87 °F
Sunny
Monday Night
Low: 53 °F
Partly Cloudy
Tuesday
High: 88 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 85. Light west wind.
Tonight
Mostly clear, with a low around 50. Southwest wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 78. West wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 44. West wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 80. Light and variable wind.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A slight chance of showers before 11pm. Partly cloudy, with a low around 52.
Wednesday
A chance of showers. Partly sunny, with a high near 76.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 46.
Thursday
A chance of showers. Partly sunny, with a high near 74.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Prosser WA
46.21°N 119.75°W (Elev. 741 ft)
46.21°N 119.75°W (Elev. 741 ft)
10:42 am PDT Aug 28, 2026
10am PDT Aug 28, 2026-6pm PDT Sep 3, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
