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

Renton Municipal Airport (KRNT)

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

Clear

51°F

11°C

Humidity 82%
Wind Speed NNW 8 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 04 Nov 11:53 AM PST
Extended Forecast for

Newcastle WA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 57. East wind around 6 mph.

    High: 57 °F

    Partly Sunny

  • Tonight

    Tonight: Rain, mainly after 9pm. Steady temperature around 53. East southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Rain

  • Wednesday

    Wednesday: Rain. High near 60. South wind 8 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 49. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain

  • Thursday

    Thursday: Rain. High near 57. South southeast wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 47. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain

  • Friday

    Friday: Rain, mainly before 4pm. High near 54. Chance of precipitation is 90%.

    High: 54 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: A slight chance of rain. Partly sunny, with a high near 55.

    High: 55 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 57. East wind around 6 mph.
Tonight
Rain, mainly after 9pm. Steady temperature around 53. East southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. High near 60. South wind 8 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 49. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 57. South southeast wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 47. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 4pm. High near 54. Chance of precipitation is 90%.
Friday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 41.
Saturday
A slight chance of rain. Partly sunny, with a high near 55.
Saturday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 47.
Sunday
A chance of rain. Mostly cloudy, with a high near 59.
Sunday Night
Rain. Mostly cloudy, with a low around 48.
Monday
Rain. Mostly cloudy, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
Last Update:
7:00 am PST Nov 4, 2025
Forecast Valid:
12pm PST Nov 4, 2025-6pm PST Nov 10, 2025
 
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Additional Resources

Radar & Satellite Image

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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