Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Tacoma / McChord Air Force Base (KTCM)

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

Overcast

48°F

9°C

Humidity 79%
Wind Speed SW 13 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 13 Apr 06:55 AM PDT
Extended Forecast for

Fort Lewis WA

  • Today

    Today: A 40 percent chance of rain, mainly after 5pm.  Partly sunny, with a high near 55. Southwest wind 8 to 11 mph.

    High: 55 °F

    Chance Rain

  • Tonight

    Tonight: A slight chance of rain before 11pm, then a chance of rain after 3am.  Mostly cloudy, with a low around 43. South southwest wind 7 to 10 mph.  Chance of precipitation is 30%.

    Low: 43 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain.  High near 51. South southwest wind 7 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 37. South southwest wind 6 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain then
    Rain Likely

  • Wednesday

    Wednesday: Rain before 2pm, then showers and possibly a thunderstorm, mainly after 2pm.  High near 50. West southwest wind 5 to 8 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely between 8pm and 11pm.  Mostly cloudy, with a low around 33. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 33 °F

    Showers
    Likely then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after 11am.  Mostly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Today
A 40 percent chance of rain, mainly after 5pm. Partly sunny, with a high near 55. Southwest wind 8 to 11 mph.
Tonight
A slight chance of rain before 11pm, then a chance of rain after 3am. Mostly cloudy, with a low around 43. South southwest wind 7 to 10 mph. Chance of precipitation is 30%.
Tuesday
Rain. High near 51. South southwest wind 7 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 37. South southwest wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 50. West southwest wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then rain likely between 8pm and 11pm. Mostly cloudy, with a low around 33. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 20 percent chance of rain after 11am. Mostly sunny, with a high near 56.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Partly sunny, with a high near 57.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 62.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 43.
Sunday
A chance of rain. Mostly cloudy, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Lewis WA
 47.1°N 122.61°W (Elev. 299 ft)
11:27 pm PDT Apr 12, 2026
9am PDT Apr 13, 2026-6pm PDT Apr 19, 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