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

Tacoma / McChord Air Force Base (KTCM)

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

Mist

41°F

5°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 41°F (5°C)
Visibility 3.00 mi
Last update 02 Jan 03:05 AM PST
Extended Forecast for

Fort Lewis WA

  • Overnight

    Overnight: Rain. Low around 38. Calm wind. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain

  • Friday

    Friday: Rain likely, mainly after 3pm. Mostly cloudy, with a high near 50. South wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Chance Rain
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain, mainly after 4am. Low around 43. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain

  • Saturday

    Saturday: Rain. High near 54. South wind 5 to 9 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 43. South southeast wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain

  • Sunday

    Sunday: Rain. High near 49. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Monday

    Monday: A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 47.

    High: 47 °F

    Chance Rain

  • Monday Night

    Monday Night: A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
Rain. Low around 38. Calm wind. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely, mainly after 3pm. Mostly cloudy, with a high near 50. South wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain, mainly after 4am. Low around 43. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 54. South wind 5 to 9 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain. Low around 43. South southeast wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. High near 49. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Monday
A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 47.
Monday Night
A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 36.
Tuesday
A chance of rain and snow before 10am, then rain likely. Cloudy, with a high near 45.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 37.
Wednesday
Rain likely. Mostly cloudy, with a high near 45.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 34.
Thursday
A chance of rain and snow. Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Lewis WA
 47.1°N 122.58°W (Elev. 299 ft)
Last Update:
1:25 am PST Jan 2, 2026
Forecast Valid:
3am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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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