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Current conditions at
Sunnyside Municipal Airport (K1S5)
Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.
Clear
61°F
16°C
| Humidity | 85% |
| Wind Speed | N 0 MPH |
| Barometer | 29.88 in (1011.85 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 20 Aug 12:55 AM PDT |
Extended Forecast for
18 Miles SE Mattawa WA
Overnight
Low: 62 °F
Mostly Clear
Thursday
High: 99 °F
Hot
Thursday Night
Low: 66 °F
Increasing
CloudsFriday
High: 101 °F
Hot
Friday Night
Low: 70 °F
Slight Chance
ShowersSaturday
High: 97 °F
Mostly Sunny
Saturday Night
Low: 60 °F
Mostly Clear
Sunday
High: 88 °F
Sunny
Sunday Night
Low: 58 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly clear, with a low around 62. West wind around 5 mph.
Thursday
Sunny and hot, with a high near 99. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 66. Southeast wind around 6 mph becoming light and variable.
Friday
Mostly cloudy and hot, with a high near 101. North wind 3 to 6 mph.
Friday Night
A 20 percent chance of showers after 11pm. Cloudy, with a low around 70. West wind around 7 mph.
Saturday
Mostly sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 92.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
18 Miles SE Mattawa WA
46.59°N 119.61°W (Elev. 600 ft)
46.59°N 119.61°W (Elev. 600 ft)
11:46 pm PDT Aug 19, 2026
1am PDT Aug 20, 2026-6pm PDT Aug 26, 2026
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