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Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Mostly Cloudy

71°F

22°C

Humidity 43%
Wind Speed WNW 10 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 May 01:53 PM PDT
Extended Forecast for

Seatac WA

  • This Afternoon

    This Afternoon: Partly sunny early, then becoming sunny, with a high near 73. North northwest wind around 7 mph.

    High: 73 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. North wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 52. North northwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 69. South southwest wind around 5 mph.

    High: 69 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance Rain

  • Memorial Day

    Memorial Day: Rain likely, mainly after 11am. Mostly cloudy, with a high near 60.

    High: 60 °F

    Rain Likely

Detailed Forecast

This Afternoon
Partly sunny early, then becoming sunny, with a high near 73. North northwest wind around 7 mph.
Tonight
Mostly clear, with a low around 52. North wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 75. Calm wind becoming west northwest around 6 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 52. North northwest wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 69. South southwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Partly sunny, with a high near 68.
Sunday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 51.
Memorial Day
Rain likely, mainly after 11am. Mostly cloudy, with a high near 60.
Monday Night
Rain likely, mainly before 11pm, then a slight chance of showers after midnight. Mostly cloudy, with a low around 46.
Tuesday
A chance of showers. Partly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Partly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Seatac WA
 47.42°N 122.29°W (Elev. 390 ft)
Last Update:
1:43 pm PDT May 21, 2026
Forecast Valid:
2pm PDT May 21, 2026-6pm PDT May 27, 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