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.

Overcast

55°F

13°C

Humidity 87%
Wind Speed ESE 3 MPH
Barometer 29.57 in (1001.36 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 05 Nov 11:50 AM PST
Extended Forecast for

Newcastle WA

  • This Afternoon

    This Afternoon: Rain. High near 59. South wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Rain

  • Tonight

    Tonight: Rain and possibly a thunderstorm. Steady temperature around 52. South wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Rain

  • Thursday

    Thursday: Rain. High near 56. South wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 46. South southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Friday

    Friday: Rain, mainly before 4pm. High near 53. South southwest wind 8 to 11 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain. Mostly cloudy, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A slight chance of rain before 10pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain after 10am. Mostly cloudy, with a high near 62.

    High: 62 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
Rain. High near 59. South wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain and possibly a thunderstorm. Steady temperature around 52. South wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain. High near 56. South wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 46. South southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 4pm. High near 53. South southwest wind 8 to 11 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 40.
Saturday
A 20 percent chance of rain. Mostly cloudy, with a high near 56.
Saturday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 47.
Sunday
A slight chance of rain after 10am. Mostly cloudy, with a high near 62.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 48.
Monday
A chance of rain. Mostly cloudy, with a high near 57.
Monday Night
A chance of rain. Mostly cloudy, with a low around 46.
Veterans Day
A chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.57°N 122.15°W (Elev. 397 ft)
Last Update:
12:00 pm PST Nov 5, 2025
Forecast Valid:
12pm PST Nov 5, 2025-6pm PST Nov 11, 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