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

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Partly Cloudy

59°F

15°C

Humidity 64%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 21 May 08:53 AM PDT
Extended Forecast for

Vashon WA

  • Today

    Today: Mostly sunny, with a high near 70. North wind 5 to 8 mph.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. North wind 3 to 7 mph.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 72. Calm wind becoming north around 6 mph in the afternoon.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. North wind around 6 mph becoming light and variable after midnight.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 70. South southwest wind 5 to 7 mph.

    High: 70 °F

    Partly Sunny

  • Saturday Night

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

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

  • Memorial Day

    Memorial Day: Rain likely. Mostly cloudy, with a high near 55.

    High: 55 °F

    Rain Likely

Detailed Forecast

Today
Mostly sunny, with a high near 70. North wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 52. North wind 3 to 7 mph.
Friday
Sunny, with a high near 72. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 52. North wind around 6 mph becoming light and variable after midnight.
Saturday
Partly sunny, with a high near 70. South southwest wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly cloudy, with a high near 63.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 48.
Memorial Day
Rain likely. Mostly cloudy, with a high near 55.
Monday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 47.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vashon WA
 47.44°N 122.46°W (Elev. 387 ft)
Last Update:
11:26 pm PDT May 20, 2026
Forecast Valid:
9am 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