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

Wet and Cool in the East this Memorial Day Weekend; Well Above Normal Temperatures in the Northern Plains

A wet Memorial Day weekend is in store for the East, with widespread rainfall of 1 to more than 2 inches expected from the Gulf Coast to southern New England. Well above normal temperatures are forecast to build across the northern Plains. Another round of heavy to excessive rainfall is expected to impact the western Gulf Coast this weekend with Flood Watches in effect. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.

Overcast

55°F

13°C

Humidity 62%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 24 May 04:00 AM PDT
Extended Forecast for

Mercer Island WA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 69. Light and variable wind becoming east northeast around 5 mph.

    High: 69 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 55. South wind 3 to 7 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Memorial Day

    Memorial Day: Rain likely, mainly after 11am. Cloudy, with a high near 62. South southwest wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 50. South wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Rain Likely
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain. Partly sunny, with a high near 63. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 63 °F

    Chance Rain

  • Tuesday Night

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

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 69. Light and variable wind becoming east northeast around 5 mph.
Tonight
Increasing clouds, with a low around 55. South wind 3 to 7 mph.
Memorial Day
Rain likely, mainly after 11am. Cloudy, with a high near 62. South southwest wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 50. South wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 63. Calm wind becoming north northwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 53.
Friday
A chance of rain. Mostly cloudy, with a high near 64.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 65.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.25°W (Elev. 105 ft)
Last Update:
11:26 pm PDT May 23, 2026
Forecast Valid:
4am PDT May 24, 2026-6pm PDT May 30, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation