Flash Flood Threats in the Southeast and Rockies; Excessive Heat in the Southwest

Flash and small stream flooding threats linger across the southern Rockies Wednesday. Strong thunderstorms with heavy downpours may cause local flash flooding along portions of the Southeast states into Thursday. Excessive heat will continue to impact the southern California mountains and deserts into Arizona and Nevada into Thursday. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

Lat: 47.54548°NLon: 122.3147°WElev: 20ft.

Clear

66°F

19°C

Humidity 72%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 04 Aug 12:10 AM PDT
Extended Forecast for

Mercer Island WA

  • Overnight

    Overnight: Widespread haze. Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm.

    Haze

    Low: 62 °F

  • Wednesday

    Wednesday: Widespread haze. Sunny, with a high near 85. Calm wind becoming west northwest around 6 mph in the afternoon.

    Haze

    High: 85 °F

  • Wednesday
    Night

    Wednesday Night: Widespread haze before 10pm. Clear, with a low around 63. North northwest wind around 6 mph becoming light and variable.

    Haze then
    Clear

    Low: 63 °F

  • Thursday

    Thursday: Sunny, with a high near 84. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.

    Sunny

    High: 84 °F

  • Thursday
    Night

    Thursday Night: Showers likely, mainly after 11pm.  Mostly cloudy, with a low around 65. Light and variable wind becoming south 5 to 7 mph in the evening.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Showers
    Likely

    Low: 65 °F

  • Friday

    Friday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 73. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Rain Likely

    High: 73 °F

  • Friday
    Night

    Friday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 59.

    Chance Rain

    Low: 59 °F

  • Saturday

    Saturday: A chance of rain.  Mostly cloudy, with a high near 72.

    Chance Rain

    High: 72 °F

  • Saturday
    Night

    Saturday Night: A slight chance of rain.  Mostly cloudy, with a low around 60.

    Slight Chance
    Rain

    Low: 60 °F

Detailed Forecast

Overnight
Widespread haze. Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm.
Wednesday
Widespread haze. Sunny, with a high near 85. Calm wind becoming west northwest around 6 mph in the afternoon.
Wednesday Night
Widespread haze before 10pm. Clear, with a low around 63. North northwest wind around 6 mph becoming light and variable.
Thursday
Sunny, with a high near 84. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.
Thursday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 65. Light and variable wind becoming south 5 to 7 mph in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 73. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 59.
Saturday
A chance of rain. Mostly cloudy, with a high near 72.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 60.
Sunday
A slight chance of rain. Partly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Partly sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Mostly sunny, with a high near 82.
Click Map For Forecast
Point Forecast:
Mercer Island WA
 47.6°N 122.22°W (Elev. 3 ft)
6:18 pm PDT Aug 3, 2021
12am PDT Aug 4, 2021-6pm PDT Aug 9, 2021
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database