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.

Overcast

52°F

11°C

Humidity 81%
Wind Speed S 9 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 06 Dec 06:35 PM PST
Extended Forecast for

Newcastle WA

Flood Watch December 8, 04:00am until December 12, 04:00pm
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Rain, mainly after 2am. Low around 45. South southeast wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance Rain
    then Rain

  • Sunday

    Sunday: Rain, mainly before noon. High near 52. South southeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain then
    Chance Rain

  • Sunday Night

    Sunday Night: Rain. Low around 47. South wind 11 to 14 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: 47 °F

    Rain

  • Monday

    Monday: Rain. High near 54. South southwest wind 10 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 54 °F

    Rain

  • Monday Night

    Monday Night: Rain. Low around 46. South southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Tuesday

    Tuesday: Rain. High near 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 45. Chance of precipitation is 100%.

    Low: 45 °F

    Rain

  • Wednesday

    Wednesday: Rain. Cloudy, with a high near 51.

    High: 51 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Rain Likely

Detailed Forecast

Tonight
Rain, mainly after 2am. Low around 45. South southeast wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly before noon. High near 52. South southeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Low around 47. South wind 11 to 14 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.
Monday
Rain. High near 54. South southwest wind 10 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Monday Night
Rain. Low around 46. South southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain. High near 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 45. Chance of precipitation is 100%.
Wednesday
Rain. Cloudy, with a high near 51.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 44.
Thursday
Rain likely. Cloudy, with a high near 50.
Thursday Night
Rain likely. Mostly cloudy, with a low around 46.
Friday
A chance of rain. Mostly cloudy, with a high near 53.
Friday Night
A chance of rain. Mostly cloudy, with a low around 46.
Saturday
A chance of rain. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.55°N 122.14°W (Elev. 538 ft)
Last Update:
1:25 pm PST Dec 6, 2025
Forecast Valid:
6pm PST Dec 6, 2025-6pm PST Dec 13, 2025
 
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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