
Heavy Mountain Snow in the Northwest U.S.; Wintry Mix in the Northeast U.S.
Two more cold fronts will pass through the Northwest U.S. this week with heavy mountain snow continuing across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain across the Northeast U.S. overnight into Wednesday. Read More >
Current conditions at
Sunnyside Municipal Airport (K1S5)
Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.
Overcast
43°F
6°C
| Humidity | 76% |
| Wind Speed | SE 5 MPH |
| Barometer | 29.66 in (1004.4 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 06 Jan 10:35 PM PST |
Extended Forecast for
11 Miles SE Mattawa WA
Tonight

Low: 32 °F
Mostly Clear
Wednesday

High: 48 °F
Partly Sunny
Wednesday Night

Low: 30 °F
Decreasing
CloudsThursday

High: 49 °F
Mostly Sunny
Thursday Night

Low: 33 °F
Mostly Cloudy
Friday

High: 47 °F
Mostly Cloudy
Friday Night

Low: 30 °F
Mostly Cloudy
Saturday

High: 43 °F
Mostly Cloudy
Saturday Night

Low: 31 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 32. Southwest wind around 10 mph, with gusts as high as 18 mph.
Wednesday
Partly sunny, with a high near 48. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Southwest wind around 9 mph.
Thursday
Mostly sunny, with a high near 49. Southwest wind around 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly cloudy, with a low around 33. Southwest wind around 8 mph.
Friday
Mostly cloudy, with a high near 47.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
Mostly cloudy, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Mostly cloudy, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Partly sunny, with a high near 46.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly cloudy, with a high near 46.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
11 Miles SE Mattawa WA
46.64°N 119.74°W (Elev. 400 ft)
46.64°N 119.74°W (Elev. 400 ft)
9:15 pm PST Jan 6, 2026
10pm PST Jan 6, 2026-6pm PST Jan 13, 2026


