Severe Weather and Flooding Threat in the Central U.S. and Mid-Atlantic; Dangerous Heat in the West and Southern Plains

Severe thunderstorms and heavy rain are expected across the central High Plains into parts of the central and southern Plains and in the the Mid-Atlantic today. Intense, dangerous heat will persist across the West, Southwest, and Southern Plains into the end of the week. Elevated to critical fire weather conditions expected in the Great Basin and Four Corners region. Read More >

Hazardous Weather Conditions

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

62°F

17°C

Humidity 72%
Wind Speed N 0 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 23 Jun 05:53 AM PDT
Extended Forecast for

Newcastle WA

Heat Advisory June 23, 06:13am until June 24, 11:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 23, 06:13am until June 24, 11:00pm

    NOW until 11:00pm Wed

    Heat Advisory

  • Today

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. North wind around 6 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. South wind 5 to 7 mph.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 70. Southwest wind around 8 mph.

    High: 70 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 11pm.  Cloudy, with a low around 54. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Rain Likely

  • Friday

    Friday: Rain.  High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 51.

    Low: 51 °F

    Rain Likely

Detailed Forecast

Today
Mostly sunny, with a high near 88. North northwest wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 61. North wind around 6 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 87. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 57. South wind 5 to 7 mph.
Thursday
Mostly cloudy, with a high near 70. Southwest wind around 8 mph.
Thursday Night
Rain likely, mainly after 11pm. Cloudy, with a low around 54. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain. High near 64. Chance of precipitation is 90%.
Friday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 51.
Saturday
A chance of rain. Mostly cloudy, with a high near 63.
Saturday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 52.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 53.
Monday
Mostly cloudy, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
11:26 pm PDT Jun 22, 2026
6am PDT Jun 23, 2026-6pm PDT Jun 29, 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