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Current conditions at
Sunnyside Municipal Airport (K1S5)
Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.
Overcast
64°F
18°C
| Humidity | 91% |
| Wind Speed | N 0 MPH |
| Barometer | 29.99 in (1015.58 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 15 Aug 03:35 AM PDT |
Extended Forecast for
Prosser WA
Overnight
Low: 62 °F
Slight Chance
T-stormsSaturday
High: 91 °F
Slight Chance
T-stormsSaturday Night
Low: 58 °F
Patchy Smoke
Sunday
High: 93 °F
Patchy Smoke
Sunday Night
Low: 59 °F
Mostly Cloudy
Monday
High: 95 °F
Mostly Sunny
Monday Night
Low: 58 °F
Partly Cloudy
Tuesday
High: 92 °F
Sunny
Tuesday Night
Low: 55 °F
Mostly Clear
Detailed Forecast
Overnight
A 20 percent chance of showers and thunderstorms. Patchy smoke. Mostly cloudy, with a steady temperature around 62. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms. Patchy smoke. Mostly sunny, with a high near 91. Light and variable wind.
Saturday Night
Patchy smoke after 11pm. Increasing clouds, with a low around 58. Light west wind.
Sunday
Patchy smoke. Cloudy through mid morning, then gradual clearing, with a high near 93. Calm wind.
Sunday Night
Mostly cloudy, with a low around 59. Calm wind becoming west around 5 mph after midnight.
Monday
Mostly sunny, with a high near 95.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 93.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 93.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Prosser WA
46.2°N 119.78°W (Elev. 646 ft)
46.2°N 119.78°W (Elev. 646 ft)
11:46 pm PDT Aug 14, 2026
3am PDT Aug 15, 2026-6pm PDT Aug 21, 2026
Additional Resources
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