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

Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Tacoma / McChord Air Force Base (KTCM)

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

Clear

78°F

26°C

Humidity 45%
Wind Speed W 9 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 26 Aug 02:55 PM PDT
Extended Forecast for

Steilacoom WA

  • Tonight

    Tonight: Increasing clouds, with a low around 57. West wind 5 to 9 mph becoming light southwest after midnight.

    Low: 57 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 55. South southwest wind 5 to 10 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 72. West southwest wind 3 to 6 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54. South southwest wind around 8 mph.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 11am. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 57. West wind 5 to 9 mph becoming light southwest after midnight.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.
Thursday Night
Increasing clouds, with a low around 55. South southwest wind 5 to 10 mph.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 72. West southwest wind 3 to 6 mph.
Friday Night
Partly cloudy, with a low around 54. South southwest wind around 8 mph.
Saturday
A 30 percent chance of showers after 11am. Partly sunny, with a high near 71.
Saturday Night
A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 71.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 68.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 54.
Wednesday
A chance of rain. Mostly cloudy, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Steilacoom WA
 47.16°N 122.6°W (Elev. 253 ft)
Last Update:
12:55 pm PDT Aug 26, 2026
Forecast Valid:
3pm PDT Aug 26, 2026-6pm PDT Sep 2, 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