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

49°F

9°C

Humidity 96%
Wind Speed NNW 8 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 48°F (9°C)
Visibility 2.50 mi
Wind Chill46°F (8°C)
Last update 14 Nov 10:53 AM PST
Extended Forecast for

Newcastle WA

Flood Advisory until November 14, 03:15pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until November 14, 03:15pm

    NOW until 3:15pm Fri

    Flood Advisory

  • Today

    High: 54 °F

    Rain

  • Tonight

    Tonight: Rain. Low around 51. South wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Rain

  • Saturday

    Saturday: Rain. High near 56. South wind 6 to 8 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: 56 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 50. Light east wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Rain Likely
    then Chance
    Rain

  • Sunday

    Sunday: Rain, mainly after 10am. High near 57. Light and variable wind becoming south southeast around 5 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 47. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Rain

  • Monday

    Monday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely

  • Monday Night

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

    Low: 41 °F

    Chance Rain

Detailed Forecast

Today
Rain. High near 54. South wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain. Low around 51. South wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 56. South wind 6 to 8 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.
Saturday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 50. Light east wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly after 10am. High near 57. Light and variable wind becoming south southeast around 5 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain. Low around 47. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.
Monday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 41.
Tuesday
A chance of rain, mainly after 10am. Partly sunny, with a high near 50.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A chance of rain. Mostly cloudy, with a high near 50.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 41.
Thursday
A chance of rain. Partly sunny, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
Last Update:
7:00 am PST Nov 14, 2025
Forecast Valid:
11am PST Nov 14, 2025-6pm PST Nov 20, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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