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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Yakima Air Terminal - McAllister Field (KYKM)

Lat: 46.56402°NLon: 120.53484°WElev: 1043.0ft.

Mist

29°F

-2°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 26°F (-3°C)
Visibility 6.00 mi
Last update 01 Jan 09:53 AM PST
Extended Forecast for

11 Miles WSW Mattawa WA

Winter Weather Advisory until January 2, 04:00am
Air Stagnation Advisory January 1, 10:01am until January 1, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
Air Stagnation Advisory
  •  
    Winter Weather Advisory until January 2, 04:00am
    Air Stagnation Advisory January 1, 10:01am until January 1, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • New Year's Day

    High: 28 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: A 20 percent chance of snow. Mostly cloudy, with a temperature rising to around 32 by 5am. Calm wind.

    Low: 27 °F⇑

    Slight Chance
    Snow

  • Friday

    Friday: A 20 percent chance of snow. Mostly cloudy, with a high near 35. Southwest wind 3 to 5 mph.

    High: 35 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 32. North wind around 6 mph.

    Low: 32 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow. Mostly cloudy, with a high near 36. North wind around 6 mph becoming light and variable in the afternoon.

    High: 36 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A 20 percent chance of snow. Mostly cloudy, with a high near 39.

    High: 39 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow. Snow level 4200 feet. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Slight Chance
    Snow

Detailed Forecast

New Year's Day
A 20 percent chance of snow. Snow level rising to 4600 feet. Cloudy, with a high near 28. Light east wind.
Tonight
A 20 percent chance of snow. Mostly cloudy, with a temperature rising to around 32 by 5am. Calm wind.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 35. Southwest wind 3 to 5 mph.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 32. North wind around 6 mph.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 36. North wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 33.
Sunday
A 20 percent chance of snow. Mostly cloudy, with a high near 39.
Sunday Night
A 20 percent chance of snow. Snow level 4200 feet. Mostly cloudy, with a low around 32.
Monday
A 10 percent chance of snow. Snow level 3500 feet. Partly sunny, with a high near 38.
Monday Night
A slight chance of snow. Partly cloudy, with a low around 31.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 36.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 32.
Wednesday
A slight chance of snow. Partly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Mattawa WA
 46.67°N 120.13°W (Elev. 3330 ft)
Last Update:
9:53 am PST Jan 1, 2026
Forecast Valid:
10am PST Jan 1, 2026-6pm PST Jan 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation