Current conditions at
Sunnyside Municipal Airport (K1S5)
Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.
Partly Cloudy
59°F
15°C
| Humidity | 82% |
| Wind Speed | W 3 MPH |
| Barometer | 30.04 in (1017.27 mb) |
| Dewpoint | 53°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 15 Sep 09:15 PM PDT |
Extended Forecast for
Prosser WA
Tonight
Low: 47 °F
Gradual
ClearingWednesday
High: 77 °F
Sunny
Wednesday Night
Low: 49 °F
Mostly Clear
Thursday
High: 79 °F
Mostly Sunny
Thursday Night
Low: 50 °F
Partly Cloudy
Friday
High: 80 °F
Sunny
Friday Night
Low: 50 °F
Clear
Saturday
High: 81 °F
Sunny
Saturday Night
Low: 50 °F
Mostly Clear
Detailed Forecast
Tonight
Cloudy early, then gradual clearing, with a low around 47. Calm wind.
Wednesday
Sunny, with a high near 77. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 49. North wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 79. Calm wind.
Thursday Night
Partly cloudy, with a low around 50. Calm wind.
Friday
Sunny, with a high near 80.
Friday Night
Clear, with a low around 50.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 77.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Prosser WA
46.22°N 119.79°W (Elev. 715 ft)
46.22°N 119.79°W (Elev. 715 ft)
3:00 pm PDT Sep 15, 2026
9pm PDT Sep 15, 2026-6pm PDT Sep 22, 2026
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