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.

Overcast

45°F

7°C

Humidity 75%
Wind Speed N 0 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 03 Dec 11:00 AM PST
Extended Forecast for

3 Miles SE Newcastle WA

  • Today

    Today: Mostly cloudy, with a high near 44. Calm wind.

    High: 44 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain, mainly after 4am. Low around 39. Light south southeast wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Mostly Cloudy
    then Rain

  • Thursday

    Thursday: Rain. High near 46. South southeast wind 3 to 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 43. South southeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 52. South southwest wind 9 to 15 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.

    High: 52 °F

    Rain

  • Friday Night

    Friday Night: Rain. Low around 46. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain

  • Saturday

    Saturday: Rain. High near 51. Chance of precipitation is 90%.

    High: 51 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Rain Likely

  • Sunday

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

    High: 52 °F

    Rain

Detailed Forecast

Today
Mostly cloudy, with a high near 44. Calm wind.
Tonight
Rain, mainly after 4am. Low around 39. Light south southeast wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. High near 46. South southeast wind 3 to 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely. Cloudy, with a low around 43. South southeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 52. South southwest wind 9 to 15 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.
Friday Night
Rain. Low around 46. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 51. Chance of precipitation is 90%.
Saturday Night
Rain likely. Mostly cloudy, with a low around 45.
Sunday
Rain. Cloudy, with a high near 52.
Sunday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 44.
Monday
Rain likely. Cloudy, with a high near 53.
Monday Night
Rain. Cloudy, with a low around 48.
Tuesday
Rain. Cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Newcastle WA
 47.51°N 122.1°W (Elev. 1201 ft)
Last Update:
7:00 am PST Dec 3, 2025
Forecast Valid:
11am PST Dec 3, 2025-6pm PST Dec 9, 2025
 
Forecast Discussion
 
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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