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.

Rain

55°F

13°C

Humidity 82%
Wind Speed S 10 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 05 Nov 11:20 PM PST
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Rain. Low around 48. South southwest wind around 17 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: 48 °F

    Rain

  • Thursday

    Thursday: Rain. High near 56. South wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 45. South southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Rain

  • Friday

    Friday: Rain, mainly before 4pm. High near 52. Southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 40. East southeast wind around 5 mph.

    Low: 40 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain. Partly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain after 10am. Mostly cloudy, with a high near 61.

    High: 61 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Rain. Low around 48. South southwest wind around 17 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.
Thursday
Rain. High near 56. South wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 45. South southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 4pm. High near 52. Southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 40. East southeast wind around 5 mph.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 56.
Saturday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 46.
Sunday
A slight chance of rain after 10am. Mostly cloudy, with a high near 61.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 48.
Monday
A chance of rain. Mostly cloudy, with a high near 57.
Monday Night
A chance of rain. Mostly cloudy, with a low around 45.
Veterans Day
A chance of rain. Mostly cloudy, with a high near 54.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Cloudy, with a high near 56.
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:
7:00 pm PST Nov 5, 2025
Forecast Valid:
11pm PST Nov 5, 2025-6pm PST Nov 12, 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