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

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 564.0ft.

NA

28°F

-2°C

Humidity 99%
Wind Speed NW 0 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 28°F (-2°C)
Visibility NA
Last update 19 Jan 02:01 AM PST
Extended Forecast for

4 Miles SSW Onalaska WA

  • Overnight

    Overnight: Patchy fog after 3am.  Otherwise, mostly clear, with a steady temperature around 32. Calm wind.

    Low: 32 °F

    Patchy Fog

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 49. Calm wind.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog before 9pm.  Otherwise, partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Patchy Fog
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain and snow after 4am.  Patchy fog.  Otherwise, partly cloudy, with a low around 32.

    Low: 32 °F

    Patchy Fog
    then Slight
    Chance
    Rain/Snow and
    Patchy Fog

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a steady temperature around 32. Calm wind.
M.L.King Day
Sunny, with a high near 49. Calm wind.
Monday Night
Partly cloudy, with a low around 30. Calm wind.
Tuesday
Mostly sunny, with a high near 48. Calm wind.
Tuesday Night
Patchy fog before 9pm. Otherwise, partly cloudy, with a low around 28. Calm wind.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 45.
Thursday Night
A slight chance of rain and snow after 4am. Patchy fog. Otherwise, partly cloudy, with a low around 32.
Friday
A slight chance of rain and snow before 10am, then a slight chance of rain after 4pm. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 45.
Friday Night
A chance of rain. Patchy fog. Otherwise, partly cloudy, with a low around 31.
Saturday
A chance of rain and snow. Patchy fog. Otherwise, partly sunny, with a high near 45.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 34.
Sunday
A chance of rain. Mostly cloudy, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.54°N 122.75°W (Elev. 535 ft)
1:25 am PST Jan 19, 2026
2am PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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