Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Overcast

33°F

1°C

Humidity 84%
Wind Speed NW 6 MPH
Barometer 30.59 in (1035.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 18 Jan 07:53 PM PST
Extended Forecast for

6 Miles SW Highland WA

Air Stagnation Advisory January 18, 08:12pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 18, 08:12pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 27 °F

    Cloudy then
    Patchy
    Freezing Fog

  • M.L.King Day

    M.L.King Day: Areas of freezing fog before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 35. Calm wind becoming north around 5 mph in the afternoon.

    High: 35 °F

    Areas
    Freezing Fog
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 35. North wind 5 to 7 mph.

    High: 35 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 26. Light and variable wind.

    Low: 26 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

Detailed Forecast

Tonight
Patchy freezing fog after 1am. Cloudy, with a low around 27. Light northeast wind.
M.L.King Day
Areas of freezing fog before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 35. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 26. Calm wind.
Tuesday
Partly sunny, with a high near 35. North wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 26. Light and variable wind.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 36.
Thursday Night
A slight chance of rain and snow after 4am. Snow level 1700 feet. Mostly cloudy, with a low around 27. Chance of precipitation is 10%.
Friday
A slight chance of rain and snow before 7am, then a slight chance of snow between 7am and 10am. Snow level 1600 feet. Partly sunny, with a high near 38.
Friday Night
A slight chance of rain and snow. Snow level 2000 feet. Mostly cloudy, with a low around 27.
Saturday
A slight chance of rain and snow. Snow level 1900 feet. Partly sunny, with a high near 37.
Saturday Night
A slight chance of rain and snow. Snow level 2200 feet. Mostly cloudy, with a low around 25.
Sunday
A slight chance of rain and snow. Snow level 2400 feet. Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Highland WA
 46.06°N 119.19°W (Elev. 1434 ft)
3:20 pm PST Jan 18, 2026
8pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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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