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

Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

75°F

24°C

Humidity 53%
Wind Speed NNW 9 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Aug 02:00 PM PDT
Extended Forecast for

Newcastle WA

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. Light northwest wind.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 58. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 58 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 77. West southwest wind 3 to 5 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 57. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 57 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 76. South southwest wind around 5 mph becoming calm in the morning.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 77. Light northwest wind.
Tonight
Increasing clouds, with a low around 58. Calm wind becoming south southeast around 5 mph after midnight.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 77. West southwest wind 3 to 5 mph.
Tuesday Night
Increasing clouds, with a low around 57. Calm wind becoming south southwest around 6 mph after midnight.
Wednesday
Partly sunny, with a high near 76. South southwest wind around 5 mph becoming calm in the morning.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Partly sunny, with a high near 77.
Friday Night
Mostly cloudy, with a low around 58.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 70.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 57.
Sunday
Mostly cloudy, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.55°N 122.14°W (Elev. 538 ft)
Last Update:
11:26 am PDT Aug 17, 2026
Forecast Valid:
2pm PDT Aug 17, 2026-6pm PDT Aug 23, 2026
 
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Additional Resources

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Chance of Precipitation