National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

N/A

Humidity 87%
Wind Speed N 0 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update 10 Mar 07:35 AM PDT
Extended Forecast for

5 Miles WNW Alderdale WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. West wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 68. West wind 14 to 17 mph, with gusts as high as 23 mph.

    High: 68 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52. West wind 10 to 14 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 72. Southwest wind 10 to 15 mph, with gusts as high as 21 mph.

    High: 72 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 53. Southwest wind 10 to 15 mph, with gusts as high as 21 mph.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 49. West wind 11 to 14 mph, with gusts as high as 21 mph.
Wednesday
Mostly cloudy, with a high near 68. West wind 14 to 17 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly cloudy, with a low around 52. West wind 10 to 14 mph, with gusts as high as 18 mph.
Thursday
Mostly cloudy, with a high near 72. Southwest wind 10 to 15 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 53. Southwest wind 10 to 15 mph, with gusts as high as 21 mph.
Friday
Partly sunny, with a high near 72.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 57.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 43.
Tuesday
A chance of rain. Mostly cloudy, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Alderdale WA
 45.91°N 120.02°W (Elev. 902 ft)
Last Update:
4:15 pm PDT Mar 17, 2026
Forecast Valid:
7pm PDT Mar 17, 2026-6pm PDT Mar 24, 2026
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation