On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Risk of severe thunderstorms from Florida to the Great Lake States

Storms may contain strong, damaging winds and hail. Locally heavy rain is also possible in southern California and the Desert Southwest. Very hot conditions continue in the lower Mississippi Valley and the Deep South.
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Current conditions at

Seattle, Seattle Boeing Field (KBFI)

Lat: 47.54583°NLon: 122.31361°WElev: 16ft.

Fair

70°F

21°C

Humidity 57%
Wind Speed calm
Barometer 30.09 in (1018.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 30 Jul 2:53 am PDT
Extended Forecast for

Mercer Island WA

Heat Advisory July 30, 12:00 PM until Saturday 09:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Clear, with a steady temperature around 63. Light northeast wind.

    Clear

    Low: 63 °F

  • Thursday

    Thursday: Sunny, with a high near 94. Light and variable wind becoming north northwest 5 to 7 mph in the morning.

    Sunny

    High: 94 °F

  • Thursday
    Night

    Thursday Night: Clear, with a low around 63. North northwest wind 5 to 8 mph becoming east northeast in the evening.

    Clear

    Low: 63 °F

  • Friday

    Friday: Sunny, with a high near 94. East northeast wind 5 to 9 mph becoming north northwest in the morning.

    Sunny

    High: 94 °F

  • Friday
    Night

    Friday Night: Clear, with a low around 62. Northeast wind 5 to 8 mph.

    Clear

    Low: 62 °F

  • Saturday

    Saturday: Sunny, with a high near 91.

    Sunny

    High: 91 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 62.

    Mostly Clear

    Low: 62 °F

  • Sunday

    Sunday: Sunny, with a high near 89.

    Sunny

    High: 89 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 63.

    Mostly Clear

    Low: 63 °F

Detailed Forecast

Overnight
Clear, with a steady temperature around 63. Light northeast wind.
Thursday
Sunny, with a high near 94. Light and variable wind becoming north northwest 5 to 7 mph in the morning.
Thursday Night
Clear, with a low around 63. North northwest wind 5 to 8 mph becoming east northeast in the evening.
Friday
Sunny, with a high near 94. East northeast wind 5 to 9 mph becoming north northwest in the morning.
Friday Night
Clear, with a low around 62. Northeast wind 5 to 8 mph.
Saturday
Sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Partly sunny, with a high near 76.
  Click Map For Forecast
Point Forecast:
Mercer Island WA
 47.55°N 122.24°W (Elev. 3 ft)
3:04 am PDT Jul 30, 2015
3am PDT Jul 30, 2015-6pm PDT Aug 5, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database