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

Tacoma / McChord Air Force Base (KTCM)

Lat: 47.15°NLon: 122.48333°WElev: 322.0ft.

Fog

36°F

2°C

Humidity 97%
Wind Speed N 0 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 35°F (2°C)
Visibility 0.25 mi
Last update 20 Jan 04:55 AM PST
Extended Forecast for

Dupont WA

  • Today

    Today: Patchy dense fog before 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 46. Light north northeast wind.

    High: 46 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Tonight

    Tonight: Patchy fog between midnight and 2am.  Otherwise, partly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 45. Calm wind.

    High: 45 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44. Calm wind.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Patchy fog before midnight, then patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 32.

    Low: 32 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 45.

    High: 45 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy dense fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 46. Light north northeast wind.
Tonight
Patchy fog between midnight and 2am. Otherwise, partly cloudy, with a low around 30. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 45. Calm wind.
Wednesday Night
Partly cloudy, with a low around 29. Calm wind.
Thursday
Partly sunny, with a high near 44. Calm wind.
Thursday Night
Patchy fog before midnight, then patchy fog after 1am. Otherwise, mostly cloudy, with a low around 32.
Friday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
A slight chance of rain and snow after 10pm. Mostly cloudy, with a low around 32.
Sunday
A chance of rain. Cloudy, with a high near 45.
Sunday Night
A chance of rain. Cloudy, with a low around 38.
Monday
A chance of rain. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Dupont WA
 47.09°N 122.64°W (Elev. 295 ft)
1:25 am PST Jan 20, 2026
5am PST Jan 20, 2026-6pm PST Jan 26, 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