Tracking Late Season Winter Storms

A moderate atmospheric river will continue to bring heavy snow over the Olympics, northern Cascades and northern Rockies Friday while heavy rain may bring flooding to coastal Oregon and Washington. A winter storm will continue to push across the Great Lakes and Northeast U.S. Friday and Saturday with areas of heavy snow and high winds. 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

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

11 Miles SSW Mattawa WA

Tonight
Low: 35 °F
Rain/Snow and
Breezy
Friday
High: 43 °F
Rain/Snow
Friday Night
Low: 32 °F
Rain/Snow
Likely
Saturday
High: 40 °F
Sunny and
Breezy
Saturday Night
Low: 30 °F
Mostly Cloudy
and Blustery
then Mostly
Cloudy
Sunday
High: 41 °F
Slight Chance
Snow
Sunday Night
Low: 36 °F
Chance
Rain/Snow
then Mostly
Cloudy
Monday
High: 54 °F
Partly Sunny
Monday Night
Low: 41 °F
Mostly Cloudy

Detailed Forecast

Tonight

Rain and snow. Snow level 3600 feet rising to 4700 feet after midnight. Low around 35. Breezy, with a west wind 19 to 29 mph decreasing to 7 to 17 mph. Winds could gust as high as 40 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday

Rain and snow. High near 43. West wind around 8 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday Night

Rain likely, possibly mixed with snow before 2am, then a chance of snow. Snow level 4500 feet lowering to 3100 feet after midnight . Cloudy, then gradually becoming partly cloudy, with a low around 32. West wind 9 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday

Sunny, with a high near 40. Breezy, with a northwest wind 16 to 24 mph, with gusts as high as 37 mph.

Saturday Night

Mostly cloudy, with a low around 30. Blustery, with a northwest wind 20 to 25 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 36 mph.

Sunday

A 20 percent chance of snow after 11am. Mostly cloudy, with a high near 41.

Sunday Night

A chance of snow, mixing with rain after 8pm, then gradually ending. Snow level rising to 6800 feet after midnight. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.

Monday

Partly sunny, with a high near 54.

Monday Night

Mostly cloudy, with a low around 41.

Tuesday

Partly sunny, with a high near 60.

Tuesday Night

Mostly cloudy, with a low around 46.

Wednesday

A slight chance of rain. Mostly cloudy, with a high near 61.

Wednesday Night

A slight chance of rain. Mostly cloudy, with a low around 46. Breezy.