Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Tacoma / McChord Air Force Base (KTCM)

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

Overcast

55°F

13°C

Humidity 93%
Wind Speed SW 3 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 19 Aug 06:10 AM PDT
Extended Forecast for

Steilacoom WA

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 77. Light and variable wind.

    High: 77 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Light north wind.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 80. Calm wind becoming north around 5 mph in the afternoon.

    High: 80 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 58. North wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after 11pm.  Mostly cloudy, with a low around 57.

    Low: 57 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 40 percent chance of rain, mainly before 11am.  Mostly cloudy, with a high near 69.

    High: 69 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 73.

    High: 73 °F

    Mostly Cloudy

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 77. Light and variable wind.
Tonight
Partly cloudy, with a low around 57. Light north wind.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 80. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 58. North wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 57.
Saturday
A 40 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Mostly cloudy, with a high near 73.
Sunday Night
Mostly clear, with a low around 55.
Monday
Partly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Steilacoom WA
 47.16°N 122.6°W (Elev. 253 ft)
11:26 pm PDT Aug 18, 2026
6am PDT Aug 19, 2026-6pm PDT Aug 25, 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