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Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northwestern Gulf Coast from south central Louisiana to the upper Texas coast today. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

77°F

25°C

Humidity 51%
Wind Speed SSE 5 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 23 Jul 02:53 PM PDT
Extended Forecast for

3 Miles ESE Newcastle WA

  • Tonight

    Tonight: Partly cloudy, with a low around 60. Light south wind.

    Low: 60 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 58. Light west wind becoming south southwest 5 to 9 mph in the evening.

    Low: 58 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 74. South southwest wind 7 to 10 mph.

    High: 74 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57. South wind 5 to 9 mph.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 11am. Partly sunny, with a high near 73.

    High: 73 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. Light south wind.
Friday
Mostly sunny, with a high near 85. Calm wind.
Friday Night
Increasing clouds, with a low around 58. Light west wind becoming south southwest 5 to 9 mph in the evening.
Saturday
Partly sunny, with a high near 74. South southwest wind 7 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 57. South wind 5 to 9 mph.
Sunday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 73.
Sunday Night
Mostly cloudy, with a low around 55.
Monday
Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Newcastle WA
 47.51°N 122.1°W (Elev. 1201 ft)
Last Update:
1:16 pm PDT Jul 23, 2026
Forecast Valid:
3pm PDT Jul 23, 2026-6pm PDT Jul 30, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation