Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through Monday across the Upper Midwest and Upper Great Lakes. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-South to the Ohio Valley and the Southeast through tonight, moving into the Mid-Atlantic Monday. 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

11 Miles SE Mattawa WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain between 8am and 2pm.  Mostly cloudy, with a high near 65. Calm wind becoming south 5 to 7 mph in the afternoon.  Chance of precipitation is 20%.

    High: 65 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 47. Southeast wind 7 to 13 mph becoming west in the evening. Winds could gust as high as 21 mph.

    Low: 47 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 71. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 71 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51. Southwest wind 8 to 10 mph.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 73.

    High: 73 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 75.

    High: 75 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 37. Calm wind.
Monday
A slight chance of rain between 8am and 2pm. Mostly cloudy, with a high near 65. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 47. Southeast wind 7 to 13 mph becoming west in the evening. Winds could gust as high as 21 mph.
Tuesday
Mostly cloudy, with a high near 71. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 51. Southwest wind 8 to 10 mph.
Wednesday
Mostly cloudy, with a high near 73.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Mostly cloudy, with a high near 75.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
Mostly cloudy, with a high near 73.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Mostly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SE Mattawa WA
 46.64°N 119.74°W (Elev. 400 ft)
2:30 am PDT Mar 16, 2026
2am PDT Mar 16, 2026-6pm PDT Mar 22, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database