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

54°F

12°C

Humidity 76%
Wind Speed SSE 4 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 09 Nov 08:00 PM PST
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Rain, mainly after 2am. Low around 51. South southeast wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Mostly Cloudy
    then Rain

  • Monday

    Monday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 57. South wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43. South wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain Likely
    then Slight
    Chance Rain

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 52. Light and variable wind.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 44. Light and variable wind.

    Low: 44 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 10am. Cloudy, with a high near 57. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Rain

  • Thursday

    Thursday: Rain. Cloudy, with a high near 52.

    High: 52 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Tonight
Rain, mainly after 2am. Low around 51. South southeast wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 57. South wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43. South wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Veterans Day
Partly sunny, with a high near 52. Light and variable wind.
Tuesday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 44. Light and variable wind.
Wednesday
Rain likely, mainly after 10am. Cloudy, with a high near 57. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 46. Chance of precipitation is 80%.
Thursday
Rain. Cloudy, with a high near 52.
Thursday Night
Rain likely. Mostly cloudy, with a low around 42.
Friday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 49.
Friday Night
Rain likely. Mostly cloudy, with a low around 43.
Saturday
Rain. Cloudy, with a high near 51.
Saturday Night
Rain. Cloudy, with a low around 44.
Sunday
Rain. Cloudy, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
Last Update:
7:01 pm PST Nov 9, 2025
Forecast Valid:
8pm PST Nov 9, 2025-6pm PST Nov 16, 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