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

Critical Fire Weather and Severe Thunderstorm Threats This Week

Gusty winds and low relative humidity will contribute to critical fire weather Monday over parts of the central and southern High Plains. Scattered to widespread severe thunderstorms may bring damaging winds, large hail, and tornadoes Monday through Thursday over the lower Mississippi River Valley and southern Plains into the Midwest and Ohio Valley. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

42°F

6°C

Humidity 47%
Wind Speed W 9 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 08 Mar 11:55 PM PDT
Extended Forecast for

15 Miles ESE Mattawa WA

  • Overnight

    Overnight: Mostly clear, with a low around 33. West wind around 9 mph.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 52. West wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. West wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 52. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 52 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. Southwest wind 8 to 14 mph, with gusts as high as 21 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain and snow before 11am, then a chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.

    High: 59 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain. Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 39. Chance of precipitation is 40%.

    Low: 39 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Mostly clear, with a low around 33. West wind around 9 mph.
Monday
Mostly sunny, with a high near 52. West wind 8 to 13 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 28. West wind 7 to 13 mph, with gusts as high as 23 mph.
Tuesday
Increasing clouds, with a high near 52. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 35. Southwest wind 8 to 14 mph, with gusts as high as 21 mph.
Wednesday
A slight chance of rain and snow before 11am, then a chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 44.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 60.
Thursday Night
A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 39. Chance of precipitation is 40%.
Friday
A chance of rain and snow before 2pm, then a chance of rain. Mostly cloudy, with a high near 58.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 37.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 58.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 36.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Mattawa WA
 46.63°N 119.62°W (Elev. 505 ft)
Last Update:
10:15 pm PDT Mar 8, 2026
Forecast Valid:
12am PDT Mar 9, 2026-6pm PDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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