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

Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

Lat: 47.44472°NLon: 122.31361°WElev: 427.0ft.

Clear

66°F

19°C

Humidity 68%
Wind Speed SW 5 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 18 Aug 12:15 PM PDT
Extended Forecast for

2 Miles SSW Des Moines WA

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. West southwest wind around 6 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 56. West wind around 6 mph becoming calm after midnight.

    Low: 56 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 76. Light and variable wind becoming west around 5 mph.

    High: 76 °F

    Decreasing
    Clouds

  • Wednesday Night

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

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Calm wind becoming north around 6 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of rain after 11pm. Partly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A slight chance of rain before 11am. Mostly cloudy, with a high near 70.

    High: 70 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 77. West southwest wind around 6 mph.
Tonight
Increasing clouds, with a low around 56. West wind around 6 mph becoming calm after midnight.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 76. Light and variable wind becoming west around 5 mph.
Wednesday Night
Partly cloudy, with a low around 57. Light north wind.
Thursday
Mostly sunny, with a high near 80. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Partly sunny, with a high near 77.
Friday Night
A slight chance of rain after 11pm. Partly cloudy, with a low around 56.
Saturday
A slight chance of rain before 11am. Mostly cloudy, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
Partly sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 55.
Monday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Des Moines WA
 47.37°N 122.31°W (Elev. 210 ft)
Last Update:
11:26 am PDT Aug 18, 2026
Forecast Valid:
12pm PDT Aug 18, 2026-6pm PDT Aug 24, 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