| NWS Forecast for: Prosser WA Issued by: National Weather Service Pendleton, OR Last Update: 3:56 am PDT Aug 18, 2026 |  |
| Today: Sunny, with a high near 94. Light west wind. Tonight: Mostly clear, with a low around 56. West wind around 5 mph becoming calm after midnight. Wednesday: Mostly sunny, with a high near 92. Calm wind. Wednesday Night: Mostly clear, with a low around 56. Calm wind. Thursday: Sunny, with a high near 94. Calm wind. Thursday Night: Partly cloudy, with a low around 59. Friday: Partly sunny, with a high near 93. Friday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 57. Saturday: Sunny, with a high near 88. Saturday Night: Mostly clear, with a low around 52. Sunday: Sunny, with a high near 86. Sunday Night: Mostly clear, with a low around 53. Monday: Sunny, with a high near 89. | |
| Prosser WA 46.22°N 119.79°W (Elev. 715 ft) | |
Visit your local NWS office at: https://www.weather.gov/pdt |
