Dangerous Fire Conditions in the Southern High Plains; Severe Weather from the Great Lakes into Central/Southern Plains; Late-Season Mountain Snow

Dry and windy conditions will produce dangerous fire weather conditions across the southern High Plains into the Southwest. Severe storms, including very large hail, strong tornadoes, and winds, are expected from the Great Lakes into the central/southern Plains. Heavy late-season snow and cold temperatures are expected in the northern to central Rockies. Heat is spreading across the eastern U.S.. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Clear

57°F

14°C

Humidity 58%
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 17 May 09:50 PM PDT
Extended Forecast for

Mercer Island WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 67. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 67 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 49. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51. Northwest wind around 5 mph becoming calm  after midnight.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. Calm wind.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 67. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 49. North northwest wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 68. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 51. Northwest wind around 5 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
A slight chance of rain. Partly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.22°W (Elev. 118 ft)
1:11 pm PDT May 17, 2026
10pm PDT May 17, 2026-6pm PDT May 24, 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