Current conditions at

Sunnyside Municipal Airport (K1S5)

Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.

thunder

64°F

18°C

Humidity 81%
Wind Speed S 5 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 15 Aug 08:15 AM PDT
Extended Forecast for

17 Miles ESE Mattawa WA

  • Today

    Today: A 20 percent chance of showers and thunderstorms.  Patchy smoke. Mostly sunny, with a high near 93. Northwest wind around 7 mph becoming northeast in the afternoon.

    High: 93 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy smoke after 11pm. Increasing clouds, with a low around 62. West wind 6 to 8 mph.

    Low: 62 °F

    Patchy Smoke

  • Sunday

    Sunday: Patchy smoke. Cloudy through mid morning, then gradual clearing, with a high near 94. West wind around 5 mph becoming calm.

    High: 94 °F

    Patchy Smoke

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 63. South wind 5 to 7 mph becoming west in the evening.

    Low: 63 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 96. West wind around 5 mph becoming light and variable.

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms. Patchy smoke. Mostly sunny, with a high near 93. Northwest wind around 7 mph becoming northeast in the afternoon.
Tonight
Patchy smoke after 11pm. Increasing clouds, with a low around 62. West wind 6 to 8 mph.
Sunday
Patchy smoke. Cloudy through mid morning, then gradual clearing, with a high near 94. West wind around 5 mph becoming calm.
Sunday Night
Mostly cloudy, with a low around 63. South wind 5 to 7 mph becoming west in the evening.
Monday
Mostly sunny, with a high near 96. West wind around 5 mph becoming light and variable.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles ESE Mattawa WA
 46.61°N 119.61°W (Elev. 591 ft)
4:01 am PDT Aug 15, 2026
8am PDT Aug 15, 2026-6pm PDT Aug 21, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database