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

52°F

11°C

Humidity 81%
Wind Speed SSE 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 16 Jun 06:05 AM PDT
Extended Forecast for

Newcastle WA

  • Today

    Today: Mostly sunny, with a high near 72. Calm wind becoming west around 6 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. Light and variable wind becoming south southeast 5 to 7 mph after midnight.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. West southwest wind 6 to 8 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 55. West southwest wind 5 to 8 mph.

    Low: 55 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before 11am. Partly sunny, with a high near 68. West southwest wind 7 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, mainly after 11am. Mostly cloudy, with a high near 63.

    High: 63 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 72. Calm wind becoming west around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 49. Light and variable wind becoming south southeast 5 to 7 mph after midnight.
Tuesday
Mostly sunny, with a high near 72. West southwest wind 6 to 8 mph.
Tuesday Night
A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 55. West southwest wind 5 to 8 mph.
Wednesday
Showers likely, mainly before 11am. Partly sunny, with a high near 68. West southwest wind 7 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 49.
Juneteenth
Partly sunny, with a high near 69.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 63.
Friday Night
Showers likely, mainly before 11pm. Mostly cloudy, with a low around 49.
Saturday
Showers likely. Mostly cloudy, with a high near 61.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 52.
Sunday
A chance of showers. Mostly cloudy, with a high near 66.
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:
4:07 am PDT Jun 16, 2025
Forecast Valid:
6am PDT Jun 16, 2025-6pm PDT Jun 22, 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