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

Hazardous Weather Conditions

Current conditions at

Renton Municipal Airport (KRNT)

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

light rain,mist

48°F

9°C

Humidity 96%
Wind Speed SSE 8 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 47°F (8°C)
Visibility 6.00 mi
Wind Chill44°F (7°C)
Last update 09 Dec 09:53 PM PST
Extended Forecast for

Newcastle WA

Flood Warning until further notice
Flood Watch December 9, 10:09pm until December 12, 04:00pm
Wind Advisory December 9, 10:09pm until December 10, 10:00pm
Click here for hazard details and duration
Flood Warning until further notice
Flood Watch
Wind Advisory
  •  
    Flood Warning until further notice
    Flood Watch December 9, 10:09pm until December 12, 04:00pm
    Wind Advisory December 9, 10:09pm until December 10, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 50 °F⇑

    Rain

  • Wednesday

    Wednesday: Rain. High near 57. South southwest wind around 18 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 57 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 49. South southwest wind 11 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • Thursday

    Thursday: Rain. High near 53. South wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 47. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Rain Likely

  • Friday

    Friday: A 50 percent chance of rain. Cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain, mainly after 10am. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

Detailed Forecast

Tonight
Rain. Temperature rising to around 55 by 3am. South southwest wind 15 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. High near 57. South southwest wind around 18 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
Rain. Low around 49. South southwest wind 11 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain. High near 53. South wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 47. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 50 percent chance of rain. Cloudy, with a high near 54.
Friday Night
A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 47.
Saturday
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 54.
Saturday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 47.
Sunday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 53.
Sunday Night
Rain. Mostly cloudy, with a low around 46.
Monday
Rain. Cloudy, with a high near 55.
Monday Night
Rain. Cloudy, with a low around 47.
Tuesday
Rain. Mostly cloudy, with a high near 51.
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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:
7:01 pm PST Dec 9, 2025
Forecast Valid:
10pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
Forecast Discussion
 
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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