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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. 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 81%
Wind Speed WNW 4 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 21 Aug 09:55 PM PDT
Extended Forecast for

4 Miles ESE Fort Lewis WA

  • Tonight

    Tonight: A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 58. Southwest wind around 6 mph.

    Low: 58 °F

    Cloudy then
    Slight Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 8am. Cloudy through mid morning, then gradual clearing, with a high near 76. West southwest wind 6 to 9 mph.

    High: 76 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 57. West wind 5 to 8 mph becoming calm in the evening.

    Low: 57 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 76. Calm wind becoming southwest around 5 mph.

    High: 76 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. Light and variable wind.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 58. Southwest wind around 6 mph.
Saturday
A 20 percent chance of rain before 8am. Cloudy through mid morning, then gradual clearing, with a high near 76. West southwest wind 6 to 9 mph.
Saturday Night
Increasing clouds, with a low around 57. West wind 5 to 8 mph becoming calm in the evening.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 76. Calm wind becoming southwest around 5 mph.
Sunday Night
Mostly clear, with a low around 56. Light and variable wind.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Fort Lewis WA
 47.09°N 122.51°W (Elev. 400 ft)
Last Update:
1:55 pm PDT Aug 21, 2026
Forecast Valid:
10pm PDT Aug 21, 2026-6pm PDT Aug 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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