Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.

Clear

64°F

18°C

Humidity 48%
Wind Speed NA NA MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 19 Jun 08:53 PM PDT
Extended Forecast for

2 Miles ESE Mercer Island WA

  • Overnight

    Overnight: A 20 percent chance of showers.  Cloudy, with a low around 52. South southeast wind around 5 mph.

    Low: 52 °F

    Slight Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 5pm.  High near 62. South wind around 8 mph becoming west northwest in the afternoon.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm, then showers after 2am.  Low around 51. South wind 5 to 10 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: Showers, mainly before 11am.  High near 63. South wind 7 to 9 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 53. South wind around 6 mph.

    Low: 53 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers.  Partly sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a low around 52. South southeast wind around 5 mph.
Friday
Showers, with thunderstorms also possible after 5pm. High near 62. South wind around 8 mph becoming west northwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm, then showers after 2am. Low around 51. South wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers, mainly before 11am. High near 63. South wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 53. South wind around 6 mph.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Partly sunny, with a high near 75.
Wednesday Night
Mostly cloudy, with a low around 56.
Thursday
A slight chance of showers. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Mercer Island WA
 47.56°N 122.18°W (Elev. 207 ft)
3:40 am PDT Jun 20, 2025
4am PDT Jun 20, 2025-6pm PDT Jun 26, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database