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Hazardous Weather Conditions
Current conditions at
Sunnyside Municipal Airport (K1S5)
Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.
Clear
87°F
31°C
| Humidity | 33% |
| Wind Speed | SW 3 MPH |
| Barometer | 29.93 in (1013.55 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 11 Aug 02:15 PM PDT |
Extended Forecast for
Prosser WA
This Afternoon
High: 91 °F
Mostly Sunny
Tonight
Low: 55 °F
Mostly Clear
Wednesday
High: 89 °F
Patchy Smoke
Wednesday Night
Low: 54 °F
Smoke
Thursday
High: 87 °F
Sunny
Thursday Night
Low: 55 °F
Mostly Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 55 °F
Mostly Clear
Saturday
High: 91 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 91. Light west wind.
Tonight
Mostly clear, with a low around 55. Calm wind becoming west around 6 mph.
Wednesday
Patchy smoke after 11am. Sunny, with a high near 89. Light west wind.
Wednesday Night
Widespread smoke, mainly between 11pm and 2am. Mostly clear, with a low around 54. West wind 3 to 5 mph.
Thursday
Sunny, with a high near 87. Calm wind.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 58.
Monday
A slight chance of showers. Mostly sunny, with a high near 90.
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)
11:46 am PDT Aug 11, 2026
2pm PDT Aug 11, 2026-6pm PDT Aug 17, 2026
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