Severe Thunderstorms and Heavy Rainfall from the Lower Mississippi Valley to the Mid-Atlantic; Active Pattern Continues in Hawaii

Scattered severe thunderstorms are expected today from the ArkLaTex and Lower Mississippi Valley through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat today from east Texas into New York. A powerful kona storm will continue to impact Hawaii through Saturday, bringing heavy rainfall, strong winds, and severe thunderstorms. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

23°F

-5°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 10 Mar 07:35 AM PDT
Extended Forecast for

11 Miles SSW Mattawa WA

  • Today

    Today: A chance of rain and snow before 2pm, then a chance of rain.  Mostly cloudy, with a high near 46. Windy, with a southwest wind 20 to 25 mph increasing to 32 to 37 mph in the afternoon. Winds could gust as high as 50 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 46 °F

    Chance
    Rain/Snow and
    Windy

  • Tonight

    Tonight: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 39. Very windy, with a southwest wind 38 to 41 mph, with gusts as high as 65 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain Likely
    and Very
    Windy

  • Thursday

    Thursday: A chance of rain and snow before 8am, then a chance of snow between 8am and 2pm, then a chance of rain and snow after 2pm.  Mostly cloudy, with a high near 44. Windy, with a west wind 31 to 36 mph, with gusts as high as 55 mph.  Chance of precipitation is 40%.

    High: 44 °F

    Chance
    Rain/Snow and
    Windy

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm, then snow likely.  Mostly cloudy, with a low around 36. Breezy, with a west wind 19 to 29 mph decreasing to 9 to 19 mph in the evening. Winds could gust as high as 40 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow
    Likely and
    Breezy then
    Snow Likely

  • Friday

    Friday: Rain likely, possibly mixed with snow.  Snow level 3100 feet rising to 4000 feet in the afternoon. Mostly cloudy, with a high near 45. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain likely before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am.  Snow level 4400 feet lowering to 3100 feet after midnight . Mostly cloudy, with a low around 33. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow, mainly after 11am.  Mostly cloudy, with a high near 42.

    High: 42 °F

    Chance Snow

Detailed Forecast

Today
A chance of rain and snow before 2pm, then a chance of rain. Mostly cloudy, with a high near 46. Windy, with a southwest wind 20 to 25 mph increasing to 32 to 37 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tonight
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 39. Very windy, with a southwest wind 38 to 41 mph, with gusts as high as 65 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A chance of rain and snow before 8am, then a chance of snow between 8am and 2pm, then a chance of rain and snow after 2pm. Mostly cloudy, with a high near 44. Windy, with a west wind 31 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain and snow before 8pm, then snow likely. Mostly cloudy, with a low around 36. Breezy, with a west wind 19 to 29 mph decreasing to 9 to 19 mph in the evening. Winds could gust as high as 40 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Rain likely, possibly mixed with snow. Snow level 3100 feet rising to 4000 feet in the afternoon. Mostly cloudy, with a high near 45. Southwest wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday Night
Rain likely before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am. Snow level 4400 feet lowering to 3100 feet after midnight . Mostly cloudy, with a low around 33. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
A 30 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 42.
Sunday Night
A chance of rain and snow before 2am, then a chance of rain. Snow level 3900 feet rising to 6900 feet after midnight. Mostly cloudy, with a low around 36.
Monday
A chance of rain. Partly sunny, with a high near 56.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 43.
Tuesday
Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSW Mattawa WA
 46.59°N 119.98°W (Elev. 3100 ft)
10:15 am PDT Mar 11, 2026
11am PDT Mar 11, 2026-6pm PDT Mar 17, 2026
 
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