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

Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Current conditions at

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Clear

40°F

4°C

Humidity 96%
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 39°F (4°C)
Visibility 8.00 mi
Last update 10 Nov 03:53 AM PST
Extended Forecast for

17 Miles SE Mattawa WA

  • Today

    Today: Mostly cloudy, with a high near 56. Light and variable wind.

    High: 56 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 35. West wind around 5 mph.

    Low: 35 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 52. Light and variable wind.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 39. Northwest wind around 6 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 20 percent chance of rain. Mostly cloudy, with a high near 53. Northwest wind 3 to 5 mph.

    High: 53 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.

    Low: 41 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.

    High: 56 °F

    Rain Likely
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain before 10am. Partly sunny, with a high near 53.

    High: 53 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 56. Light and variable wind.
Tonight
Partly cloudy, with a low around 35. West wind around 5 mph.
Veterans Day
Mostly sunny, with a high near 52. Light and variable wind.
Tuesday Night
Increasing clouds, with a low around 39. Northwest wind around 6 mph.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 53. Northwest wind 3 to 5 mph.
Wednesday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Thursday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 35.
Friday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 53.
Friday Night
A chance of rain, mainly after 4am. Mostly cloudy, with a low around 37.
Saturday
A chance of rain. Mostly cloudy, with a high near 53.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 38.
Sunday
A chance of rain. Mostly cloudy, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SE Mattawa WA
 46.59°N 119.64°W (Elev. 600 ft)
Last Update:
3:22 am PST Nov 10, 2025
Forecast Valid:
4am PST Nov 10, 2025-6pm PST Nov 16, 2025
 
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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