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

45°F

7°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 01 Dec 07:00 PM PST
Extended Forecast for

3 Miles SE Newcastle WA

  • Tonight

    Tonight: Rain likely, mainly between 10pm and 5am. Cloudy, with a low around 39. Calm wind becoming south around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain likely, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 46. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Rain Likely
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

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

    High: 44 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 4am. Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog
    then Chance
    Rain

  • Thursday

    Thursday: Rain, mainly after 10am. High near 46. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 43. Chance of precipitation is 80%.

    Low: 43 °F

    Rain

  • Friday

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

    High: 52 °F

    Rain

  • Friday Night

    Friday Night: Rain. Cloudy, with a low around 45.

    Low: 45 °F

    Rain

Detailed Forecast

Tonight
Rain likely, mainly between 10pm and 5am. Cloudy, with a low around 39. Calm wind becoming south around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 46. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 34. Calm wind.
Wednesday
Mostly cloudy, with a high near 44. Calm wind.
Wednesday Night
A 30 percent chance of rain after 4am. Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 36. Calm wind.
Thursday
Rain, mainly after 10am. High near 46. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 43. Chance of precipitation is 80%.
Friday
Rain. Cloudy, with a high near 52.
Friday Night
Rain. Cloudy, with a low around 45.
Saturday
Rain. Mostly cloudy, with a high near 51.
Saturday Night
Rain. Mostly cloudy, with a low around 44.
Sunday
Rain. Cloudy, with a high near 51.
Sunday Night
Rain likely. Mostly cloudy, with a low around 44.
Monday
Rain. Cloudy, with a high near 52.
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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 pm PST Dec 1, 2025
Forecast Valid:
7pm PST Dec 1, 2025-6pm PST Dec 8, 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