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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Tacoma / McChord Air Force Base (KTCM)

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

Clear

64°F

18°C

Humidity 68%
Wind Speed ENE 4 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 19 Sep 06:55 PM PDT
Extended Forecast for

Steilacoom WA

  • Tonight

    Tonight: Increasing clouds, with a low around 53. Calm wind.

    Low: 53 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Patchy dense fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 72. Light north wind.

    High: 72 °F

    Patchy Dense
    Fog then
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 51. North northeast wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 71. Calm wind.

    High: 71 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 53. Calm wind.
Sunday
Patchy dense fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 72. Light north wind.
Sunday Night
Increasing clouds, with a low around 51. North northeast wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 71. Calm wind.
Monday Night
Partly cloudy, with a low around 54. Calm wind.
Tuesday
Partly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Mostly cloudy, with a high near 65.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 52.
Friday
A chance of rain. Mostly cloudy, with a high near 63.
Friday Night
A chance of rain. Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Steilacoom WA
 47.18°N 122.6°W (Elev. 3 ft)
Last Update:
8:22 pm PDT Sep 19, 2026
Forecast Valid:
10pm PDT Sep 19, 2026-6pm PDT Sep 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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