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

34°F

1°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 34°F (1°C)
Visibility 0.38 mi
Last update 20 Jan 02:00 AM PST
Extended Forecast for

3 Miles SSE Fort Lewis WA

  • Overnight

    Overnight: Patchy dense fog.  Otherwise, mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Patchy dense fog before 11am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 46. Calm wind.

    High: 46 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Tuesday Night

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

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. Calm wind.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Patchy fog before 1am, then patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 31.

    Low: 31 °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 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 30. Calm wind.
Tuesday
Patchy dense fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 46. Calm wind.
Tuesday Night
Partly cloudy, with a low around 29. Calm wind.
Wednesday
Mostly sunny, with a high near 46. Calm wind.
Wednesday Night
Partly cloudy, with a low around 28. Calm wind.
Thursday
Partly sunny, with a high near 44.
Thursday Night
Patchy fog before 1am, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 31.
Friday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 31.
Sunday
Rain likely. Cloudy, with a high near 47.
Sunday Night
Rain likely. Cloudy, with a low around 37.
Monday
A chance of rain. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Fort Lewis WA
 47.06°N 122.57°W (Elev. 318 ft)
1:25 am PST Jan 20, 2026
2am 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