Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Overcast

54°F

12°C

Humidity 58%
Wind Speed SSW 14 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 13 Apr 12:00 PM PDT
Extended Forecast for

Vashon WA

  • This Afternoon

    This Afternoon: A 30 percent chance of rain, mainly after 5pm.  Mostly cloudy, with a high near 54. Southwest wind around 11 mph.

    High: 54 °F

    Chance Rain

  • Tonight

    Tonight: A 40 percent chance of rain, mainly between 1am and 5am.  Increasing clouds, with a low around 45. South southwest wind around 11 mph.

    Low: 45 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain, mainly after 9am.  High near 48. South southwest wind 11 to 18 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 11pm.  Low around 39. South southwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Rain, mainly between 11am and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 48. South southeast wind 6 to 8 mph becoming southwest in the morning.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 48 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain before 11pm.  Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 54. Southwest wind around 11 mph.
Tonight
A 40 percent chance of rain, mainly between 1am and 5am. Increasing clouds, with a low around 45. South southwest wind around 11 mph.
Tuesday
Rain, mainly after 9am. High near 48. South southwest wind 11 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain, mainly before 11pm. Low around 39. South southwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain, mainly between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 48. South southeast wind 6 to 8 mph becoming southwest in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 50 percent chance of rain before 11pm. Mostly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Partly sunny, with a high near 54.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly cloudy, with a high near 59.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 46.
Sunday
A chance of rain. Mostly cloudy, with a high near 54.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Vashon WA
 47.44°N 122.46°W (Elev. 387 ft)
11:27 am PDT Apr 13, 2026
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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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