Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Tacoma / McChord Air Force Base (KTCM)

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

Clear

62°F

17°C

Humidity 82%
Wind Speed WNW 4 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 18 Aug 02:55 AM PDT
Extended Forecast for

Fort Lewis WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 80. Southwest wind 3 to 6 mph.

    High: 80 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. West wind 5 to 7 mph becoming calm  after midnight.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 79 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of rain before 11am.  Partly sunny, with a high near 79.

    High: 79 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 55. Calm wind.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 80. Southwest wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 55. West wind 5 to 7 mph becoming calm after midnight.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 56. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 57.
Friday
A slight chance of rain before 11am. Partly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly cloudy, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Fort Lewis WA
 47.1°N 122.58°W (Elev. 299 ft)
11:26 pm PDT Aug 17, 2026
3am PDT Aug 18, 2026-6pm PDT Aug 24, 2026
 
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