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Hazardous Weather Conditions

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

7°C

45°F

Humidity 88%
Wind Speed NNE 3 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 6°C (42°F)
Visibility 16 km
Last update 13 Jan 05:35 PM PST
Extended Forecast for

5 Miles WNW Alderdale WA

Air Stagnation Advisory January 13, 05:34pm until January 16, 10:00am
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 13, 05:34pm until January 16, 10:00am

    NOW until 10:00am Fri

    Air Stagnation Advisory

  • Tonight

    Low: 2 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Patchy dense fog before 10am. Otherwise, mostly sunny, with a high near 8. Calm wind.

    High: 8 °C

    Patchy Dense
    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 1. Calm wind.

    Low: 1 °C

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 6. Calm wind becoming northeast 5 to 10 km/h in the morning.

    High: 6 °C

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -1. Calm wind.

    Low: -1 °C

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 6.

    High: 6 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around -1.

    Low: -1 °C

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 4.

    High: 4 °C

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 2. Calm wind.
Wednesday
Patchy dense fog before 10am. Otherwise, mostly sunny, with a high near 8. Calm wind.
Wednesday Night
Partly cloudy, with a low around 1. Calm wind.
Thursday
Mostly sunny, with a high near 6. Calm wind becoming northeast 5 to 10 km/h in the morning.
Thursday Night
Partly cloudy, with a low around -1. Calm wind.
Friday
Mostly sunny, with a high near 6.
Friday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around -1.
Saturday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 4.
Saturday Night
Partly cloudy, with a low around -2.
Sunday
Mostly sunny, with a high near 4.
Sunday Night
Partly cloudy, with a low around -2.
M.L.King Day
Partly sunny, with a high near 4.
Monday Night
Mostly cloudy, with a low around -2.
Tuesday
Partly sunny, with a high near 6.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Alderdale WA
 45.91°N 120.02°W (Elev. 902 m)
Last Update:
5:15 pm PST Jan 13, 2026
Forecast Valid:
5pm PST Jan 13, 2026-6pm PST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation