Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

70°F

21°C

Humidity 63%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Aug 09:53 PM PDT
Extended Forecast for

2 Miles ENE Newcastle WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. Light and variable wind.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 78. South wind around 5 mph becoming calm  in the morning.

    High: 78 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 56. Calm wind becoming southwest around 5 mph after midnight.

    Low: 56 °F

    Increasing
    Clouds

  • Wednesday

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

    High: 76 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °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 57.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 57. Light and variable wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 78. South wind around 5 mph becoming calm in the morning.
Tuesday Night
Increasing clouds, with a low around 56. Calm wind becoming southwest around 5 mph after midnight.
Wednesday
Mostly cloudy, then gradually becoming 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 55. Calm wind.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 77.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 69.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 56.
Sunday
Mostly cloudy, with a high near 72.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Newcastle WA
 47.55°N 122.11°W (Elev. 794 ft)
11:26 am PDT Aug 17, 2026
10pm PDT Aug 17, 2026-6pm PDT Aug 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