Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Tacoma / McChord Air Force Base (KTCM)

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

Overcast

41°F

5°C

Humidity 93%
Wind Speed S 5 MPH
Barometer 29.78 in (1008.47 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 15 Apr 04:15 AM PDT
Extended Forecast for

Fort Lewis WA

  • Today

    Today: Rain likely and possibly a thunderstorm, then showers and possibly a thunderstorm after noon.  High near 49. Light south southwest wind becoming southwest 5 to 10 mph in the morning.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 49 °F

    Showers
    Likely then
    Showers

  • Tonight

    Tonight: Rain likely, possibly mixing with snow after 9pm, then gradually ending. Some thunder is also possible.  Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow
    Likely then
    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 56. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38. West southwest wind 3 to 8 mph.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 58. Calm wind.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of rain.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain.  Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance Rain

Detailed Forecast

Today
Rain likely and possibly a thunderstorm, then showers and possibly a thunderstorm after noon. High near 49. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain likely, possibly mixing with snow after 9pm, then gradually ending. Some thunder is also possible. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Mostly sunny, with a high near 56. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 38. West southwest wind 3 to 8 mph.
Friday
Mostly sunny, with a high near 58. Calm wind.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly cloudy, with a high near 65.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45.
Sunday
A chance of rain. Mostly cloudy, with a high near 66.
Sunday Night
A chance of rain before 11pm. Mostly cloudy, with a low around 44.
Monday
A slight chance of rain. Partly sunny, with a high near 68.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 46.
Tuesday
A slight chance of rain. Partly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Lewis WA
 47.1°N 122.58°W (Elev. 299 ft)
1:16 am PDT Apr 15, 2026
4am PDT Apr 15, 2026-6pm PDT Apr 21, 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